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Item#TypeModel No.Model NameMakerCountryMaterialDiameterDateCondition
Fowler's Calculator - Type HFowler & Co.UKCast metal (early)"2-1/2"1915

Notes: "Original box with cotton bedding. Box lid has inscription in pencil: J.J. Carruthers, Chicago, 1915. Large knob rotates front dial only. Small knob rotates cursor on front and dial on rear. No serial number."

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