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Details and Image

Item#TypeModel No.Model NameMakerCountryMaterialDiameterDateCondition
The Mechanical Engineer Pocket CalculatorScientific Publishing Co..UKNickel-plated brass"3"c. 1900-1907

Notes: "Large version of the calculator with 2-1/2"" scale disc. This specimen has no inscription on it. Cursor works fine, but disk only rotates if case is loosened. "

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