エジプト学研究第 24 files/jes24/7_sobekhat.pdf2 エジプト学研究 第 14 号 the journal...

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ISSN 2187-0772 エジプト学研究第 24 2018 The Journal of Egyptian Studies Vol.24, 2018 目次 < 調査報告 > 2017 太陽の船プロジェクト 活動報告 ・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・ 黒河内宏昌・吉村作治・・・・・ 3 10 次ルクソール西岸アル=コーカ地区調査概報 ・・・・・・・・・・・・・・・・・ 近藤二郎・吉村作治・菊地敬夫・柏木裕之・河合 望・高橋寿光・福田莉紗・米山由夏 ・・・・・ 11 26 次アブ・シール南丘陵遺跡調査概報 ・・・・・・・・・・・・・・・ 吉村作治・河合 望・近藤二郎・苅谷浩子・高橋寿光・米山由夏・石崎野々花・菅沼奏美 ・・・・・ 36 3 次北サッカラ遺跡調査概報:踏査・測量・探査報告 ・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・ 河合 望・三井 猛・吉村作治・近藤二郎・柏木裕之・高橋寿光 ・梅田由子・米山由夏・石崎野々花・菅沼奏美 ・・・・・ 48 3 次北サッカラ遺跡調査概報:試掘調査 ・・・・・・・・・・・・・・・ 河合 望・吉村作治・近藤二郎・柏木裕之・高橋寿光・米山由夏・石崎野々花・菅沼奏美 ・・・・・ 82 エジプト ダハシュール北遺跡調査報告―第 24 次調査― ・・・・・・・・・・・・・・・・・・・・・・・・・ 吉村作治・矢澤 健・近藤二郎・柏木裕之・山崎世理愛・石崎野々花・有村元春 ・・・・・ 113 Intact Middle Kingdom Anthropoid Coffin of Sobekhat from Dahshur North: Discovery, Conservation and X-Ray Analysis ・・・・・・・・ Sakuji YOSHIMURA, Masahiro BABA, Ken YAZAWA, Richard JAESCHKE and Masayuki UDA ・・・・・ 158 < 研究ノート > エジプト出土のミケーネ土器再考 ・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・ 有村元春 ・・・・・ 178 エジプト中王国・新王国時代におけるペクトラルの副葬にみられる変化: ダハシュール北遺跡出土資料を用いた考察 ・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・ 山崎世理愛 ・・・・・ 203 < 資料紹介 > メロエの衰退をめぐる研究の現状と課題 ・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・ 坂本 ・・・・・ 229 < 動向 > スーダン考古学文献解題―我が国の学問的歩みを理解するために―・・・・・・・・・・・・・・・・・・・・・・・・・ 坂本 ・・・・・ 242

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Page 1: エジプト学研究第 24 files/JES24/7_sobekhat.pdf2 エジプト学研究 第 14 号 The Journal of Egyptian Studies Vol.24, 2018 CONTENTS Field Reports Report of the Activity

1目次 ISSN 2187-0772

エジプト学研究第 24 号 2018 年

The Journal of Egyptian Studies Vol.24, 2018

目次

< 調査報告 >

2017 年 太陽の船プロジェクト 活動報告 ・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・ 黒河内宏昌・吉村作治 ・・・・・ 3

第 10 次ルクソール西岸アル=コーカ地区調査概報

・・・・・・・・・・・・・・・・・ 近藤二郎・吉村作治・菊地敬夫・柏木裕之・河合 望・高橋寿光・福田莉紗・米山由夏 ・・・・・ 11

第 26 次アブ・シール南丘陵遺跡調査概報

・・・・・・・・・・・・・・・ 吉村作治・河合 望・近藤二郎・苅谷浩子・高橋寿光・米山由夏・石崎野々花・菅沼奏美 ・・・・・ 36

第 3 次北サッカラ遺跡調査概報:踏査・測量・探査報告

・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・ 河合 望・三井 猛・吉村作治・近藤二郎・柏木裕之・高橋寿光

・梅田由子・米山由夏・石崎野々花・菅沼奏美 ・・・・・ 48

第 3 次北サッカラ遺跡調査概報:試掘調査

・・・・・・・・・・・・・・・ 河合 望・吉村作治・近藤二郎・柏木裕之・高橋寿光・米山由夏・石崎野々花・菅沼奏美 ・・・・・ 82

エジプト ダハシュール北遺跡調査報告―第 24 次調査―

・・・・・・・・・・・・・・・・・・・・・・・・・ 吉村作治・矢澤 健・近藤二郎・柏木裕之・山崎世理愛・石崎野々花・有村元春 ・・・・・ 113

Intact Middle Kingdom Anthropoid Coffin of Sobekhat from Dahshur North:

Discovery, Conservation and X-Ray Analysis

・・・・・・・・Sakuji YOSHIMURA, Masahiro BABA, Ken YAZAWA, Richard JAESCHKE and Masayuki UDA ・・・・・ 158

< 研究ノート >

エジプト出土のミケーネ土器再考 ・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・ 有村元春 ・・・・・ 178

エジプト中王国・新王国時代におけるペクトラルの副葬にみられる変化:

ダハシュール北遺跡出土資料を用いた考察 ・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・ 山崎世理愛 ・・・・・ 203

< 資料紹介 >

メロエの衰退をめぐる研究の現状と課題 ・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・ 坂本 翼 ・・・・・ 229

< 動向 >

スーダン考古学文献解題―我が国の学問的歩みを理解するために―・・・・・・・・・・・・・・・・・・・・・・・・・ 坂本 翼 ・・・・・ 242

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2 エジプト学研究 別冊 第 14 号

The Journal of Egyptian Studies Vol.24, 2018

CONTENTS

Field ReportsReport of the Activity in 2017, Project of the Solar Boat ・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・Hiromasa KUROKOCHI and Sakuji YOSHIMURA ・・・・・ 3

Preliminary Report on the Tenth Season of the Work at al-Khokha Area in the Theban Necropolis by the Waseda University Egyptian Expedition ・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・ Jiro KONDO, Sakuji YOSHIMURA, Takao KIKUCHI, Hiroyuki KASHIWAGI, Nozomu KAWAI, Kazumitsu TAKAHASHI, Risa FUKUDA and Yuka YONEYAMA ・・・・・ 11

Preliminary Report on the Twenty-Sixth Season of the Work at Northwest Saqqaraby the Waseda Egyptian Expeditions ・・・・・・・・・ Sakuji YOSHIMURA, Nozomu KAWAI, Jiro KONDO, Hiroyuki KASHIWAGI, Hiroko KARIYA, Kazumitsu TAKAHASHI, Yuka YONEYAMA, Nonoka ISHIZAKI and Kanami SUGANUMA ・・・・・ 36

Preliminary Report on the Third Season of Arcaeological Survey at North Saqqara:Archaeological Reconnaissance, Mapping and Geophysical Survey ・・・・・・・Nozomu KAWAI, Takeshi MITSUI, Sakuji YOSHIMURA, Jiro KONDO, Hiroyuki KASHIWAGI, Kazumitsu TAKAHASHI, Yuko UMEDA, Yuka YONEYAMA, Nonoka ISHIZAKI and Kanami SUGANUMA ・・・・・ 48

Preliminary Report on the Third Season of Arcaeological Survey at North Saqqara:Archaeological Work ・・・・・Nozomu KAWAI, Sakuji YOSHIMURA, Jiro KONDO, Hiroyuki KASHIWAGI, Kazumitsu TAKAHASHI, Yuka YONEYAMA, Nonoka ISHIZAKI and Kanami SUGANUMA ・・・・・ 82

Preliminary Report on the Excavations at Dahshur North: Twenty-Fourth season ・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・Sakuji YOSHIMURA, Ken YAZAWA, Jiro KONDO, Hiroyuki KASHIWAGI, Seria YAMAZAKI, Nonoka ISHIZAKI and Motoharu ARIMURA ・・・・・ 113

Intact Middle Kingdom Anthropoid Coffin of Sobekhat from Dahshur North: Discovery, Conservation and X-Ray Analysis ・・・・・・・・Sakuji YOSHIMURA, Masahiro BABA, Ken YAZAWA, Richard JAESCHKE and Masayuki UDA ・・・・・ 158

ArticlesMycenaean pottery found in Egypt: Revisited ・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・Motoharu ARIMURA ・・・・・ 178

Changes in the Use of Pectorals between the Middle Kingdom and the New Kingdom ・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・Seria YAMAZAKI ・・・・・ 203

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158 エジプト学研究 第 24 号

Intact Middle Kingdom Anthropoid Coffin of Sobekhat from Dahshur North:

Discovery, Conservation and X-Ray Analysis

IntroductionSince 1996, the Waseda University Egyptian Expedition has conducted excavations at Dahshur North, a large

cemetery located in the lower desert approximately 1 km northwest of the pyramid of Senwosret III and 1 km southwest of the pyramid of Khendjer. The initial excavations concentrated in the southeastern area, revealing the typical New Kingdom tomb-chapels of Ipay and Pashedu, and dozens of shaft-tombs and pit-burials (Fig. 1). Since 2004, a new area consisting of a small mound approximately 100 m west of Ipay’s tomb has been the focus of our investigations (Fig. 2). Excavation of the small mound revealed it to be a late New Kingdom tomb-chapel of Ta, although the superstructure is now completely destroyed. In subsequent seasons, the investigations around this tomb-chapel have revealed many other New Kingdom shaft-tombs, but also Middle Kingdom ones. This is the first substantial evidence for the existence of Middle Kingdom burials in this cemetery. Moreover, some of these were completely undisturbed and contained intact coffins. So far, we have discovered four intact shaft-tombs belonging to Senu (Shaft 42), an anonymous owner (Shaft 54), Keki (Shaft 64), Sobekhat and Senetites (Shaft 65). Based on the style of the coffins and associated pottery, all Middle Kingdom coffins could be dated from the late Twelfth to Thirteenth Dynasties1). Amongst them, the focus of this paper is on the inner anthropoid coffin of Sobekhat, because the long-running conservation work on his fine and elaborated coffin was recently completed. In addition, X-ray analysis of the materials used on the coffin is reported here.

Archaeological Context of the burialExcavation in 2007 (12th season) revealed the tomb of Sobekhat and Senetites (Shaft 65) located south of

the southern wall of Ta’s tomb and immediately east of Senu’s tomb. The shaft entrance is oriented north-south, and measures 2.0 x 0.8 m (fig. 3). The shaft itself is 3.6 m deep, and completely filled with Tafl chunks (fig. 4). At the bottom of the shaft, two chambers were found to the north and south. Sobekhat, “Ka-priest” was buried in the south chamber (fig. 4) and Senetites, “Mistress of the House” in the north (fig. 5). There was no sealing block at the entrances. Both coffins were placed in the ordinary direction as the long side with the eye-panel was facing east. It is remarkable that in this tomb, the funerary process can be traced by the archaeological contexts of a group of pottery placed in the chambers and around the shaft entrance. In the chamber of Sobekhat, nine miniature plates, a small round-bottomed bowl, a flat-based plate and a fragment of so-called beer-bottle were

Sakuji YOSHIMURA*1, Masahiro BABA*2, Ken YAZAWA*3, Richard JAESCHKE*4, and Masayuki UDA*5

* 1 President and Professor of Higashi Nippon International University and Emeritus Professor of Waseda University* 2 Associate Professor of the Waseda Institute for Advanced Study* 3 Visiting Associate Professor of Institute of Egyptian Archaeology, Higashi Nippon International University * 4 Freelance Conservator* 5 Emeritus Professor of Waseda University

調査報告

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159Intact Middle Kingdom Anthropoid Coffin of Sobekhat from Dahshur North

Fig.1 Map of Dahshur North site

Fig.2 Excavaton area around the tomb-chapel of Ta (Shaft 40)

0 20 m10

N

Tomb chapel of “Ta”

Tomb chapel of “Ipay”

Tomb chapel of “Pashedw”

Fig.1 Map of Dahshur North site

2E37 2E38 2E39 2E40 3E31 3E32

2E7 2E82E9 2E10 3E1 3E2

5m0

2E192E18

2E292E28

2E17

2E27 3E22

3E123E11

3E21

2E20

2E30

2E47 2E48 2E492E50

3E41 3E42

Shaft91

14y0004

14y0004

Shaft103

14y0005

Shaft102

Shaft101

Shaft66

Shaft73(Unfinished)

Shaft55

Shaft100

Shaft92

Shaft58

12y-001011y-0029

14y0001

14y0002

Shaft67

Shaft99

Shaft93

Shaft9814y0003

Shaft97

Shaft94

Shaft96

Shaft95

Shaft90

13y0003

Shaft8913y0004

Shaft88

Shaft87

Shaft44

Shaft43

12y0008

Shaft64

Shaft 40Tomb of Ta

Shaft65Shaft42

Shaft41

Shaft54

Shaft46

Shaft45

Shaft59

Shaft 60

Shaft56

Shaft 61(Unfinished)

Shaft53

Shaft48

Shaft 50

Shaft 51

Shaft 57

Shaft 47

Shaft 49

Shaft52

Shaft72

Shaft74

Shaft75

Shaft76

Shaft71Shaft77

Shaft78

Shaft70

Shaft69(Unfinished)

Shaft80(Unfinished)

Shaft79

Shaft68

Shaft62

Shaft8313y0005 Shaft81

12y0007

Shaft 63

10y000612y0006

13y0002

13y000112y-0009

10y0007

Shaft85

Shaft86

Shat82 Shaft84

16y0008 Shaft111 Shaft110

Shaft109 Shaft108Shaft107

Shaft106Shaft105

Shaft124 Shaft123 Shaft122 19P014 Shaft120

Shaft121

Shaft119

Shaft118 19P011

Shaft117Shaft115

Shaft116

Shaft114Shaft113

Shaft112

Cleared shaft tombMiddle Kingdom

N

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160 エジプト学研究 第 24 号

Fig.3 Plan and section of Shaft 65

0 3m

A'A

A'A

Plan of Shaft 65

A-A’ section of Shaft 65

Tafl mound

South chamber(Burial of Sobekhat)

North chamber(Burial of Senetites)

N

Fig.4 Removing Tafl chunks filled in the shaft (Shaft 65)

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161Intact Middle Kingdom Anthropoid Coffin of Sobekhat from Dahshur North

Fig.6 Pottery fragments scattered around the Tafl mound over Shaft 65

Fig.4 Coffin of Sobekhat found in situ Fig.5 Coffin of Senetites found in situ

0 3m

0 10cm

0 10cm

0 10cm0 10cm

0 10cm

shaftbottom

12 13

14

15

16 17

18 19

2021 22

23

24 25

26 27 28 29

30 31 32 33

34 35 36 37

Coffin of Sobekhat Coffin of SenetitesN

red

smoke stain

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162 エジプト学研究 第 24 号

distributed on the floor, and mainly concentrated in front of the eye-panel on the east side of the coffin (fig. 6)2). In the chamber of Senetites, however, 14 miniature plates were found, mainly around the south end of the east side of the coffin (fig. 6), which is probably due to the pottery being placed after the installation of the coffin. Most of the miniature plates have black stains and some had contained a kind of plant grains. They appear to have served as offering containers for incense and food. In contrast, the entrance of the shaft was artificially capped with a small Tafl mound, from which many pottery sherds were retrieved (fig. 7). There were at least 11 pottery vessels including small hemispherical cups with a red slip on the rim, a small ring-based cup, a flat-based beaker, a jar with a spout, a globular jar and a bottom fragment of the so-called beer bottle (fig. 8)3). It is intriguing that almost all are probably related to liquid contents. This evidence, thus, suggests that after offering to the deceased and filling the shaft, the relatives or participants in the ritual conducted a ceremony which included drinking around the tomb and then discarded the containers. The last performance seems to be a protective ritual such as the “Breaking the Red pots”4).

Fig.8 Pottery fragments scattered around the Tafl mound over Shaft 65

Fig.7 Tafl mound over Shaft 65, partly removed

0 20cm

1 2 34 5

6

7 8

910

11

red smoke stain

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163Intact Middle Kingdom Anthropoid Coffin of Sobekhat from Dahshur North

Inner Anthropoid Coffin of Sobekhat (12o-0180)The mummy of Sobekhat was placed within the double coffins. Inside the rectangular coffin5), the anthropoid

coffin, covered with a shroud, was placed on its left side with the head pointing to the north (figs. 9. 10). This inner anthropoid coffin is made of a wooden frame and cartonnage. The body was painted in red and the broad collar was finely represented with polychrome painting (fig. 11). It is noteworthy that the white bands of the headdress were overlaid with rows of small black ornaments (fig. 12)6); the result of X-ray analysis of these is shown below. Another distinctive feature is the garment of papyrus and lotus, or lilies, painted symmetrically on the chest to represent Lower and Upper Egypt (fig. 13)7). The central column is inscribed with the hetep-di-nesut formula, which in this case consists of an invocation for the Memphite God Ptah-Sokar-Osiris (fig. 14). Intriguingly, his name and title at the end of the column were written in a small space with blue pigment in a fairly cursory manner, different to the other characters (fig. 15). Therefore, it is probable that the space for a name and title had formerly been left blank, and then it was filled after the owner was decided. This means that

Fig.9 Anthropoid coffin of Sobekhat placed in his outer box coffin

Fig.10 Anthropoid coffin covered with a shroud

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164 エジプト学研究 第 24 号

Fig.11 Orthographic view of the anthropoid coffin of Sobekhat after conservation

0 60cm

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165Intact Middle Kingdom Anthropoid Coffin of Sobekhat from Dahshur North

Fig.12 Headdress of the anthropoid coffin overlaid with rows of small black ornaments

Fig.13 Garment decoration of papyrus and lotus/lilies on the chestFig.14 Central column inscribed with

hetep-di-nesut formula

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166 エジプト学研究 第 24 号

this coffin had already been prepared with the space intended to receive the name of the deceased left blank. Therefore, the coffin is a ready-made product and Sobekhat’s name and title were added after he or his relatives chose it. This kind of production system regarding funerary items has already been noted8). The textual contents in the column is as follows.

Htp-di-nswt PtH-Skr-Wsir nb r(A)-stAw di.f prt-xrw kA Apd Ss mnxt snTr mrHt n kA n Hm kA Sbk-HAt mAa-xrw

An offering which the king gives to Ptah-Sokar-Osiris, lord of Rosetau, so that he may give voice-offerings of bread and beer, oxen and fowl, alabaster and linen, incense and oil, for the Ka of Ka-priest, Sobekhat, justified.

ConservationConservation treatment of the inner coffin of Sobekhat was carried out by R. Jaeschke in collaboration with

the Egyptian conservators at the Saqqara magazine. When we first encountered the painted linen, gesso and wooden coffin in 2011, some conservation treatment

had already been undertaken. Some joins in the wooden structure had been stabilised with an adhesive and some gaps filled. Lifting areas of linen and gesso had been packed with cotton wool filler and a resin consolidant (fig. 16). There were no conservation records available of this earlier treatment, but some of the materials used remained. The most dramatic of the previous treatments was the covering of the entire outer painted surface with Japanese paper tissue using Klucel G (hydroxypropylcellulose) as an adhesive (fig. 17). This is a cellulose ether soluble in water, alcohol and other polar solvents, which is normally used to consolidate leather. The justification for the application of this facing was not clear, as the painted surface of the coffin had appeared reasonably sound in excavation photographs. Small strips of Japanese tissue had previously been applied to bridge cracks and hold down loose fragments. The full covering with Japanese tissue had been applied over the top of these strips. While the joints in the wooden structure had been secured with adhesives and cotton wool mixed with a consolidating resin, there had apparently been no attempt to re-align distorted areas. As a result, gaps and misplaced components had been fixed into place and the true shape of the coffin obscured. Evidence of the incorrect profile and surface position of the coffin could be seen where marks in the wood or areas of paint were no longer properly aligned and the surface deformed (fig. 18). The packing of the gaps with cotton wool

Fig.15 Name and title of Sobekhat at the bottom of the central column

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167Intact Middle Kingdom Anthropoid Coffin of Sobekhat from Dahshur North

Fig.16 Cotton wool used as a gapfill Fig.17 Paper facing on painted surface

Fig.18 Distorted surface with misaligned break edges Fig.19 Paper facing covering broken and distorted surface

Fig.20 Sections of red paint lifting off with paper facing

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and consolidant had further compounded the distortion at this stage, preventing joints in the wood being brought together or lifting areas of the surface being laid back into place. The problem caused by the application of the paper facing became clear upon further examination. The linen and gesso outer layers of the coffin were cracked and distorted. The paper covered over the cracks and prevented any attempts at re-alignment or strengthening of the painted gesso itself (fig. 19). In addition, and most dramatically, the use of Klucel G as an adhesive for the facing had clearly not been tested before application on the different areas of the painted surface. The majority of the coffin surface had been decorated with a red paint which covered all the outer surface of the base and most of the lid, apart from the head and a central band down the centre. The red paint was laid in a thin layer with a shiny surface and may have had a different binder from the other colours (black, blue, green and white) or a coating applied on top. Klucel G is soluble in ethanol. When this solvent was applied to release the paper facing from the other colours it was possible to release the paper facing without too much difficulty (fig. 20). However, the presence of ethanol caused the red paint to soften and remain attached to the paper facing. Any further application of ethanol would cause the paint to dissolve into a slurry between the lifting paper and the gesso base layer, resulting in severe damage to the red paint layer. Other solvents were tested, and either failed to soften the Klucel G or had a similar softening effect on the red paint.

Conservation treatment began with the removal of the previous interventions of cotton wool packing and some of the misaligned gap filling in the structure of the wooden body of the coffin. This was done mechanically with forceps. Where necessary acetone was injected to soften and dissolve the consolidant resin that had been used.

The misaligned areas were then treated with a 20% solution weight/volume of Paraloid B72 (an acrylic copolymer of methyl acrylate and ethyl methacrylate) in acetone. This was injected using a pipette into the cracks and gaps in an area of the coffin. The solution was allowed to saturate the internal areas of displacement for a few minutes. The edges of breaks were coated with a more viscous solution of Paraloid B72 in acetone as an adhesive. The displaced area was then realigned and held in place using webbing straps and padded clamps (fig. 21). The realignment procedure was carried out, area by area, across the entire coffin. Once one area was correctly aligned and made secure, it was possible to see how the next area should be treated. Once the misalignment was corrected, all the cracks and gaps in the area would close up and the decoration would become correctly aligned once more (fig. 22).

The paper facing was removed by dripping a tiny amount of ethanol on the surface of the paper to soak through. The edge of the paper was carefully lifted with forceps (fig. 23) and more ethanol dripped under the edge (fig. 24). This enabled the paper facing to be slowly peeled away from the underlying paint. The softened slurry of red pigment was packed down using a very small metal spatula tip, onto the gesso surface beneath (fig. 25). This allowed the paper to be removed and the surface paint relaid onto the surface where it had detached.

Fig.21 Realigning consolidated areas using straps and clamps Fig.22 Realigning areas of the coffin lid

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169Intact Middle Kingdom Anthropoid Coffin of Sobekhat from Dahshur North

In areas where the red paint had not been used – the head and central stripe of hieroglyphs – it was possible to release the paper facing using ethanol and forceps without the paint softening.

In some areas another problem was encountered while removing the facing paper, over both the fugitive red pigment areas and the areas with more robust colour decoration. No consolidation or strengthening had been carried out on the cracked and broken areas of the gesso before the facing paper had been applied. Some areas

Fig.23 Lifting the paper after first application of ethanol Fig.24 The paint forms a slurry after the application of further ethanol to release the paper facing

Fig.25 Relaying the slurry using a small spatula tip Fig.26 Broken and displaced fragments under the paper facing

Fig.27 After the fragments are relocated, the area can be correctly reshaped

Fig.28 Cleaning the surface with swabs of acetone

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may have broken after the paper was applied. This resulted in very fragile, and often misaligned, areas being attached to the paper facing but out of place

on the coffin (fig. 26). The paper had to be removed to free up the fragments before their proper placement could be determined. This was carried out, area by area, by detaching the paper from the gesso fragments with ethanol. The fragments were left in the general area until the area was free of the paper facing. Then the fragments could be identified and correctly repositioned by following the shapes of the broken edges, the painted decoration and even original tool marks in the gesso from when it was applied in ancient times. Once the small fragments were correctly located on the body of the coffin, they could be attached using the viscous solution of Paraloid B72 in acetone as an adhesive. After this had hardened and the surface was secure, the alignment of larger areas could be corrected using the 20% solution of Paraloid B72 in acetone to soften the underlying body of the gesso and webbing clamps and padded straps to hold it in the correct position until the consolidant had hardened (fig. 27).

The head area was very distorted in the face and wig cover. Many of the faience beads had been detached. The distortion could be seen most dramatically in the misalignment of the stripes in the painted wig cover.

No attempt had been made during the earlier conservation treatment to clean the surface of the coffin, which retained a considerable amount of dust and dirt from the burial. Dirt on the painted surface was removed using cotton wool swabs of acetone, gently rolled to and fro across the surface (fig. 28). Although this dirt is often water-soluble rather than being soluble in organic solvents, the presence of the consolidant enables the dirt to be removed with acetone.

Once the surface had been cleaned as much as possible, fragments of gesso which could be accurately relocated were put back in their original position and attached using Paraloid B72 in acetone as an adhesive (figs. 29, 30). There were 220 places on the wig cover for faience beads of which 161 remained. Those that could be identified were attached to their original positions, using the shape of the underlying gesso or the remains of the painted stripes to match beads to their locations. The remainder were placed in the empty locations on the left side of the head and their positions marked so that it would be possible to identify them in future. The viscous solution of Paraloid B72 in acetone was used as the adhesive.

Areas where the gesso surface was missing or where cracks could not be completely closed up were filled using a mixture of glass microballoons mixed with Paraloid B72 in acetone as a gapfill. Once hardened, this was carved down mechanically to the correct shape and toned to match using acrylic inks.

Fig.29 Loose fragments of gesso were only reattached if their original position could be clearly identified

Fig.30 This fragment could be identified by its surface details and break edges

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X-Ray AnalysisX-ray analysis on the anthropoid coffin was conducted by M. Uda at the Saqqara magazine in October 2009.

This investigation aimed to identify the constituents of the small black ornaments overlaid on the headdress as well as the pigments used in the polychrome painting. In particular, it was important to determine whether the black shiny ornaments were made of faience or glass (fig. 31).

The analysis was performed using an X-ray Diffractometer equipped with an X-ray Fluorescence spectrometer (XRDF) which was specially designed for X-ray archaeology (fig. 32). A diffraction pattern and a fluorescence spectrum can both be obtained by the XRDF from the same small area on the surface of the specimen.

Small black ornamentsThe cross section of the ornament was investigated by XRDF (fig. 33). The data taken from the body

shown in Fig. 34 confirmed that the internal body was composed of crystalline SiO2 (quartz) and contained no amorphous phase. Observed XRF data were converted from wt % to atomic ratios. This was necessary due to the fact that XRDF experiments were performed in the open air, and then light elements such as H, C, O, etc. could not be detected. In such a case, atomic ratios are more convenient to compare with the other data than wt %, because the atomic ratios remain unchanged even if the experiments are performed in vacuum. A main element detected here was Si, but only atomic ratios of minor elements observed in this experiment were inserted in Fig. 34. This situation is also true for following XRD figures. The blackish colour of the body was originated from small amounts of unidentified crystalline phases including K, Ca, Mn, Fe, Cu and Ba. The glazed surface of

Fig.31 Black ornaments overlaid on the headdress of the coffin Fig.32 Experiment of XRDF on site

Fig.33 X-ray Analysis on a broken ornament

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the ornament (fig. 35) was composed of an amorphous phase and crystalline SiO2. The blackish or dark purple colour of the surface was also originated from K, Ca, Mn, Fe, Cu and Ba in both the glazed and crystalline parts. These analytical results indicate that the ornament was made of faience, but not glass. The glazed surface of the ornament was composed of a glassy material and crystalline quartz.

Fig.34 XRD spectrum taken from the cross section of the ornament

Fig.35 XRD spectrum taken from the surface of the ornament

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173Intact Middle Kingdom Anthropoid Coffin of Sobekhat from Dahshur North

Pigments of the garment Samples of blue, green, red and white pigments on the garment were analyzed with XRDF (fig. 36). Data

taken from the blue part (fig. 37) revealed that this is the Egyptian blue (CaO CuO 4SiO2), which included small amounts of calcite (CaCO3), gypsum (CaSO4 2H2O), quartz (SiO2), and halite (NaCl). For the green, the data (fig. 38) shows that it was painted with paratacamite (CuCl (OH)3), which were mixed with small amounts of quartz, calcite, gypsum and halite. Paratacamite is a rare mineral but was also found on the outer rectangular coffin of Sobekhat. The red pigment (fig. 39) was composed mainly of hematite, α-Fe2O3 which were mixed with quartz, calcite and gypsum. The white pigment (fig. 40) was composed of calcite together with small amounts of quartz and gypsum.

Fig.36 X-ray analysis for colored parts of the garment

Fig.37 XRD spectrum taken from a blue part

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In sum, it was revealed that the blue, green, red and white pigments were mainly composed of Egyptian blue, paratacamite, hematite and calcite, respectively. The gypsum detected from the analyzed area seems to have been used as a binder for these pigments. Halite may have been used as an antiseptic.

Fig.38 XRD spectrum taken from a green part

Fig.39 XRD spectrum taken from a red part

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Pigments of the faceThe face of the anthropoid coffin was painted in a grey colour (fig. 41), which symbolically represents the

dead Sobekhat as Osiris. XRDF data taken from the face’ surface (fig. 42) shows that the grey was made of a mixture of cassiterite (SnO2) and quartz. Calcite and halite detected were used for the binder and the antiseptic, respectively. Cassiterite is quite rare in the ancient Egyptian objects, however, our analysis on grey face of the Senu’s mask also observed this material, in association with galena (PbS).

Fig.40 XRD spectrum taken from a white part

Fig.40 XRD spectrum taken from a gray face

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AcknowledgmentsWe would like to express our deepest appreciation to all members of the Egyptian Ministry of Antiquities,

in particular to Dr. Khaled El-Anany (the Minister of Antiquities) and Dr. Zahi Hawass (the former Minister of Antiquities) for granting us the permission for our excavations and conservation. Special thanks are due to Dr Nadia Ibrahim Lokma (the former General Director of Conservation S.C.O. Project Sector) and conservators from the Saqqara inspectorate. Without cooperation with her team, conservation works could not have been successfully completed. We also must offer our great thanks to Mr. Atushi Ishizaki (Riken Keiki Co., Ltd.) who supported all X-ray analyses. Finally, we would like to thank Helena Jaeschke for her correction of our English.

Footnote 1) These Middle Kingdom tombs have been already reported in the following articles: Baba 2014, Baba and Yoshimura

2011, Baba and Yazawa 2015, Baba and Yoshimura 2015. Broad picture of the cemetery during the Middle Kingdom and its relation to the adjacent royal cemeteries were discussed in Yazawa 2017.

2) The miniature plates and small bowl were made of Nile B2 and the flat-based plate and a beer bottle of Nile C. 3) The hemispherical cups were made of Nile B1, the ring-based cup, spouted jar and globular jar of Nile B2, and beaker

and beer bottle of Nile C. The vessel indices of two complete hemispherical cups are 169 and 161, the range of which, according to Do. Arnold, places them in the late Twelfth to early Thirteenth Dynasties (Do. Arnold 1988: 140-1).

4) The ritual of “Breaking the Red Pots” is suggested to be performed at the end of the funeral (Willems 2001: 321). 5) For the detail of the outer rectangular coffin, see Baba and Yazawa 2015: 6-7. 6) This type of decoration is similar to the black coffin of Hapi-Ankhtifi from Meir, which is now in the Metropolitan

Museum of Art (Hayes 1953: 312, fig. 203). 7) A similar garment was painted on the coffin of Sep from Deir el-Bersheh (Lacau 1904: CG 28084), and that of

Senebtisi from Lisht which is made of beads (Hayes 1953: 308-9; Patch 1995). 8) John Garstang commented on this kind of production system (Garstang 2002: 48).

BibliographyArnold, Do.

1988 “Pottery”, in Arnold, Di., The South Cemeteries of Lisht, Vol.I: The Pyramid of Senwosret I, New York, pp.106-149.

Baba, M.2014 “Intact Middle Kingdom Burials of Senu found at Dahshur North”, in Kondo, J. (ed.), Quest for the Dream of the

Pharaohs: Studies in Honour of Sakuji Yoshimura, Cairo, pp.35-48.

Baba, M. and Yazawa, K.2015 “Burial Assemblage of the Late Middle Kingdom shaft-tombs in Dahshur North”, in Grajetzki, W. and Miniaci, G.

(eds.), The World of Middle Kingdom Egypt 2000-1550 BC: Contributions on Archaeology, Art, Religion, and Written

Sources, Middle Kingdom Studies 1, London, pp.1-24.

Baba, M. and Yoshimura, S.2011 “Ritual Activities in Middle Kingdom Egypt: A View from Intact Tombs Discovered at Dahshur North”, in Bárta M.,

Coppens, F. and Krejcí J. (eds.), Abusir and Saqqara in the Year 2010, Vol.I, Prague, pp.158-170.

Garstang, J.2002 Burial customs of ancient Egypt: as illustrated by tombs of the Middle Kingdom, London.

Hayes, W.C.1953 The Scepter of Egypt: A Background for the Study of the Egyptian Antiquities in The Metropolitan Museum of Art.

Vol. 1: From the Earliest Times to the End of the Middle Kingdom, New York.

Lacau, P.1904 Sarcophages Antérieurs au Nouvel Empire, Tome.I, fasc.II, Catalogue Général des Antiquités Égyptiennes du Musée

du Caire 14, Cairo.

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Patch, D.C.1995 “A “Lower Egyptian” Costume: Its Origin, Development, and Meaning”, Journal of the American Research Center in

Egypt 32, pp.93-116.

Willems, H.2001 “The social and ritual context of a mortuary liturgy of the Middle Kingdom (CT spells 30-41)”, in Willems, H. (ed.),

Social Aspects of Funerary Culture in the Egytian Old and Middle Kingdoms: Proceedings of the International

Symposium held at Leiden University 6-7 June, 1996, Orientalia Lovaniensia Analecta 103, Leuven, pp.253-372.

Yazawa, K.2017 “The late Middle Kingdom shaft tombs in Dahshur North”, in Bárta M., Coppens, F. and Krejcí J. (eds.), Abusir and

Saqqara in the Year 2015, Prague, pp.531-544.

Yoshimura, S. and Baba, M.2015 “Recent Discoveries of intact tombs at Dahshur North: Burial customs of the Middle and New Kingdoms”, in

Kousoulis P. and Lazardidis N. (eds.), Proceedings of the Tenth International Congress of Egyptologists, University

of the Aegean, Rhodes, 22-29 May 2008, Orientalia Lovaniensia Analecta 241, Leuven, pp.545-556.

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エジプト学研究 第 24 号

2018 年 3 月 31 日発行

発行所 / 日本エジプト学会

 〒 169-8050 東京都新宿区戸塚町 1-104

 早稲田大学エジプト学研究所内

発行人 / 吉村作治

The Journal of Egyptian Studies No.24

Published date: 31 March 2018

Published by The Japan Society of Egyptologist

1-104, Totsuka-chyo, Shinjyuku-ku, Tokyo, 169-8050, Japan

© The Japan Society of Egyptologist