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Details and Image

TypeModel No.MakerCountryConstruction
DateScale LengthArea of Use
"Flank Spotting Rule, M1"
Bausch & LombUSA
Stainless Steel
1941Dia. = 26.7 cmMilitary

Notes: 1) Used for gun pointing calculations for the M1 Anti-aircraft M1 gun 2) Tripod mounted with a spotting scope 3) See images from the Army maintence manual

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