This brass circular protractor was manufactured in the mid-19th century and made available for sale by the New York City firm headed by Benjamin Pike (1777–1863). Pike, a dealer of optical, ...
IIIF provides researchers rich metadata and media viewing options for comparison of works across cultural heritage collections. Visit the IIIF page to learn more. This yellow xylonite (celluloid-like ...
PITTSBURGH (KDKA) -- Unless you're an architect or an engineer, it's probably been years since you last used a protractor in geometry class. But, now the semi-circular tool is showing up in some odd ...
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