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Item#TypeModel No.Model NameMakerCountryMaterialDiameterDateCondition
FOW010Pocket
2CA1b
Fowler's Artillery CalculatorFowler & Co.UKCast metal (early)"2-1/2"c. 1915-1921
C6

Notes: "Early model artillery calculator. Center knob turns dial on front. Side knob turns rear dial and front cursor. Rear has conversion scales for Yards/Miles, Miles/KM, Inches/MM, and MM/Inches. Serial number 1982."

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