div class=ts-pagebuttonPage 1button div class=ts-image amp-img class=ts-thumb alt=Page 1: Welcome to Ecma Internationalecma-internationalorgmementoPictures of the past · Pinkertons background was in ultrasonics and he had no prior experience of large-scale circuitry src=https:reader033vdocumentsmxreader033viewer20220502025f560a1a28d38315042bfb63html5thumbnails1jpg width=142 height=106 layout=responsive amp-img divdivdiv class=ts-pagebuttonPage 2button div class=ts-image amp-img class=ts-thumb alt=Page 2: Welcome to Ecma Internationalecma-internationalorgmementoPictures of the past · Pinkertons background was in ultrasonics and he had no prior experience of large-scale circuitry src=https:reader033vdocumentsmxreader033viewer20220502025f560a1a28d38315042bfb63html5thumbnails2jpg width=142 height=106 layout=responsive amp-img divdiv