USA - "Gunners' Quadrant" Former American military...

Old American military artillery firing quadrant Gunner’s Quadrant M1, a precision instrument used to control and adjust the elevation angle of artillery pieces. Rugged metal construction with a military green finish, a spirit level, a micrometer mechanism and a large MILS-graduated scale. The instrument bears inscriptions including “QUADRANT GUNNERS M1”, “STOCK NO 7578998”, “LINE OF FIRE”, as well as the indications “READ RED FIGURES” and “READ BLACK FIGURES” allowing reading of the different graduations. Serial number visible on the plate. Shows signs of use, small paint wear and marks consistent with military use. American manufacture, 20th century, period to be specified according to the serial number and variant of the M1.

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