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Item#TypeModel No.Model NameMakerCountryMaterialDiameterDateCondition
FOW015Pocket
3MG1
Fowler's Universal CalculatorFowler & Co.UKPressed metal"3-3/8"c. 1943-1944
C5

Notes: "Single sided calculator with same scale length as a linear mannheim slide rule (10"") but in more compact form. Metal back and felt lined leather case. No serial number."

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