Semicircular Military Protractor

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The semicircular protractor used to measure angles by the military.

Galleries

Protractors

Source

Chief of Engineers Advance Map and Aerial Photograph Reading (Washington, DC: United States Government Printing Office, 1941)

Downloads

TIFF (full resolution)

2400×1228, 252.9 KiB

Large GIF

1024×523, 44.0 KiB

Medium GIF

640×327, 24.4 KiB

Small GIF

320×163, 9.8 KiB