Check the listing for details. Vintage Victor Champion mechanical adding machine with a paper roll.. Listed at 45.00 USD. The Victor Adding Machine Company was a prominent manufacturer of mechanical and later electronic calculators and adding machines. Founded in Chicago, Illinois, in 1918, Victor became a household name for its reliable and user-friendly office equipment. Their machines were widely used in businesses and homes for decades, contributing significantly to the mechanization of accounting and record-keeping. The 'Champion' model, as indicated on this machine, was one of Victor's popular lines, known for its robust construction and ease of operation. These mechanical calculators, with their distinctive keypads and printing mechanisms, represent a significant era in the history of computing and office technology before the advent of electronic devices. It does work.