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Item#TypeModel No.Model NameMakerCountryMaterialDiameterDateCondition
Fowler's Long Scale CalculatorFowler & Co.UKPressed metal"2-1/2"c. 1935-1937

Notes: "Very rare single sided long scale calculator. Has same front scale as the Fowler's Long Scale Calculator, but has a nickel plated sheet metal press on back. Case has a small bump on back. Serial number 15675."

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