IIIF provides researchers rich metadata and media viewing options for comparison of works across cultural heritage collections. Visit the IIIF page to learn more. In the early 20th century, some ...
The Deadnutz combination protractor/level fits 0.5-in. through 6-in. conduit, and it can also be used as a normal level, a line level, a pitch indicator, and a plumb and alignment tool. The instrument ...
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