IIIF provides researchers rich metadata and media viewing options for comparison of works across cultural heritage collections. Visit the IIIF page to learn more. Richard G. Smith (about 1891–1936) ...

Drawing instruments have been essential to mathematics, architecture, surveying, navigation, engineering design, and other technical endeavors from antiquity through the 20th century, although ...

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Instruments like these were used by skilled draughtsmen (and women) in many drawing offices to produce engineering drawings for structures, such as bridges and building frames, at a time when computer ...