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Army

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Manufactured by Q-O-S Corporation, New York for the U.S. Army Corp of Engineers. Although originally designed for military reconnaissance work, this type of instrument was used for map reading of aerial photographs up to 8”. Object ID: USGS-000235...
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Stereoscope
Manufactured by Q-O-S Corporation, New York for the U.S. Army Corp of Engineers. Although originally designed for military reconnaissance work, this type of instrument was used for map reading of aerial photographs up to 8”. Object ID: USGS-000235...
Location: USA
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Object has its original Case. A graduated circular protractor with pivoting arm, it is used for measuring or marking off angles. This instrument was manufactured by Bowen & Company and was first used by the U.S. Army Corp of Engineers before being transferred to the U.S. Geological Survey. Object I...
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Bevel Protractor
Object has its original Case. A graduated circular protractor with pivoting arm, it is used for measuring or marking off angles. This instrument was manufactured by Bowen & Company and was first used by the U.S. Army Corp of Engineers before being transferred to the U.S. Geological Survey. Object I...
Location: USA
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