Dimensionsoverall: 10 in x 8 in
DescriptionB&W image of Elizur Wrights' Arithmeter, patented 1869. It consists of a large cylinder driven by a hand crank with gearing. The surface of the cylinder was covered with numbers and there is a guide with moveable knobs.
Photo courtesy of The New England, Corporate Library Historical Collection.
CreditCourtesy of Gwen Bell