Protractor. Brass conveyor or degree bow in a wooden box. The jet of the degree arch is 86 mm. The center of the arc is indicated with an iron needle and the instrument has an arm with a nonius on the bow.
Size: 2500px × 1668px
Photo credit: © BTEU/RKMLGE / Alamy / Afripics
License: Licensed
Model Released: No
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