This type of stereoscopic trainer was based on research conducted by the National Defense Research Committee and the Eastman Kodak Company, and was designed for training antiaircraft gunners during World War II. This example was produced by the Rochester Ordnance District. The inscription reads “Stereoscopic Trainer - Mk. 6-1. Serial No. 538 ... Rochester N.Y.”
Ref: “Stereoscopic Trainer,” New York Times (Nov. 14, 1943), p. E9.
“Stereoscopic Trainer,” Science News-Letter 44 (Nov. 20, 1943): 326-327.
“Stereoscopic Trainer Aids Army Gunners,” Washington Post (Jan. 24, 1944), p. 12.
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