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wrhs:24553
60-centimeter base range finder
Warner & Swasey
still image
Black and white photograph of the 60 cm. base range finder (Model 1917).
1917
United States
Cleveland (Ohio)
eng
nonprojected graphic
8 x 10 in
pg270_1_10_g
"No. 2026"
Optical range finders -- Ohio -- Cleveland Optical industry -- Ohio -- Cleveland -- Photographs Optical instruments -- Design and construction