This circular slide rule consists of a silver-colored metal dial, 8-1/2" wide, mounted on a silver-colored metal disc. Three oblong holes on the base disc permit the reading of trigonometric scales on ...
IIIF provides researchers rich metadata and media viewing options for comparison of works across cultural heritage collections. Visit the IIIF page to learn more. Leather belting produced from cowhide ...
In 1966 I went to Leeds University to study Electrical and Electronic Engineering. At an introductory lecture from the Professor, we were told we would need a slide rule for the course. It was ...
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