Pedometer in nickel-plated, perhaps contrasting brass and nickel-plated case. Glazed back. Small compass fitted to the crown. Blued steel hands. White enamel dial recording 1760 yards on the outer dial up to ten miles on one subsidiary dial and up to 100 on the other. A third subsidiary, above a projecting wheel, acts as a map wheel. A projecting lever at the top left of the dial zeros the hands. The steel and brass movement has pace adjustment and light ‘snailing’ on the steel backplate. The polished steel weight is stamped with HC and the map wheel trademark of Henri Chatelain, together with the numbers 15676 and 100237. C. 1910. 46.5mm dia.