Sliding caliper used by Dr. Montague Cobb
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@ National Museum of African American History and Culture
Unidentified
Description
This is a metal caliper with a sliding scale. The head has pointed edges. The top section is fixed in place, while the lower section moves up and down the ruler. A small screw is present at the side of the lower section.
Metal
Collection of the Smithsonian National Museum of African American History and Culture, Gift of Dr. Michael L. Blakey