div class=ts-pagebutton class=gotoPage data-page=1Page 1button div class=ts-imageimg data-url=oughtred-society-slide-rule-home-page-14-age-journal-of-the-oughtred-society-qhtmlpage=1 data-page=1 class=ts-thumb lazyload alt=Page 1: Oughtred Society Slide Rule Home Page14 age Journal of the Oughtred Society Q 50 pic ETT Figure 8 Model 101C — Circular Slide Rule 41 in ES Yellow Has Case and Manual 2 loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentinreader034viewer20220503155f777282a441044a8158cb65html5thumbnails1jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=2Page 2button div class=ts-imageimg data-url=oughtred-society-slide-rule-home-page-14-age-journal-of-the-oughtred-society-qhtmlpage=2 data-page=2 class=ts-thumb lazyload alt=Page 2: Oughtred Society Slide Rule Home Page14 age Journal of the Oughtred Society Q 50 pic ETT Figure 8 Model 101C — Circular Slide Rule 41 in ES Yellow Has Case and Manual 2 loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentinreader034viewer20220503155f777282a441044a8158cb65html5thumbnails2jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=3Page 3button div class=ts-imageimg data-url=oughtred-society-slide-rule-home-page-14-age-journal-of-the-oughtred-society-qhtmlpage=3 data-page=3 class=ts-thumb lazyload alt=Page 3: Oughtred Society Slide Rule Home Page14 age Journal of the Oughtred Society Q 50 pic ETT Figure 8 Model 101C — Circular Slide Rule 41 in ES Yellow Has Case and Manual 2 loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentinreader034viewer20220503155f777282a441044a8158cb65html5thumbnails3jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=4Page 4button div class=ts-imageimg data-url=oughtred-society-slide-rule-home-page-14-age-journal-of-the-oughtred-society-qhtmlpage=4 data-page=4 class=ts-thumb lazyload alt=Page 4: Oughtred Society Slide Rule Home Page14 age Journal of the Oughtred Society Q 50 pic ETT Figure 8 Model 101C — Circular Slide Rule 41 in ES Yellow Has Case and Manual 2 loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentinreader034viewer20220503155f777282a441044a8158cb65html5thumbnails4jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=5Page 5button div class=ts-imageimg data-url=oughtred-society-slide-rule-home-page-14-age-journal-of-the-oughtred-society-qhtmlpage=5 data-page=5 class=ts-thumb lazyload alt=Page 5: Oughtred Society Slide Rule Home Page14 age Journal of the Oughtred Society Q 50 pic ETT Figure 8 Model 101C — Circular Slide Rule 41 in ES Yellow Has Case and Manual 2 loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentinreader034viewer20220503155f777282a441044a8158cb65html5thumbnails5jpg width=140 height=200 divdiv