Archive of Collections

Details and Image

Item#TypeModel No.Model NameMakerCountryMaterialDiameterDateCondition
No. 1
"The ""Small"" Pocket Calculator"G. SmallUSAPewter"2"c. 1918

Notes: "Basically a circular slide rule with scale length similar to 6"" linear rule. Two halves rotate independently with the moveable cursor fixed to one half. Edge scales used similar to C & D scales on linear slide rule."

Click on the Condition Code to obtain more details.