Pedometer in a nickel-plated case, bow and pocket hook combined. Blued steel hand. White card dial, the outer ring reading 1 – 10. Signed AP CO (American Pedometer Co) MADE IN USA PATENTED MARCH 4 1902. The movement stamped brass with brass screws, marked PAT APD FOR. A spiral spring counteracts the weight. A central knurled knob zeros the hands. A flat spring and snail allows stride adjustment. c.1902. 43mm dia.