Museum object · Tools and Equipment
Spreading calipers used by Dr. Montague Cobb
mid 20th century
Washington, District of Columbia, United States, North and Central America
Source catalog description
This description refers to material held by Smithsonian National Museum of African American History and Culture. Visual details below describe the original material.
This is a spreading metal caliper with curved, rounded ends. There is a crossbar scale that slides as the rounded ends get farther apart. The small circular screw that holds the scale in place has become detached.
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Sources & collection details
Smithsonian National Museum of African American History and Culture — original record ↗
Catalog metadata · CC0 · Source checked 2026-10-13
Catalog reference: 2014.308.1ab
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