This is a rarely found antique clock for the automobile dating prior to 1918. These early clocks were designed exactly like the pocket watch which was common place at the time, the only difference being that the size was 1/3 to 1/2 larger, and there was no ring at the top winder to attach the chain. The auto clock would be held in place by a metal holder which was attached to the "dashboard" which was literally made of wood in those days. One would then have access to the time without having to pull out their pocket watch while trying to drive (a good safety feature)! This particular model was an 8 day mechanism made by the Waltham Watch Company expressly for Tiffany & Co. as you can see in the photos. It is made of gilt metal with a porcelain face (which has a hairline surface crack) and both the hands and numbers have been coated with radioluminescent paint so that they are illuminated after dark. Imagine how advanced that must have been over 100 years ago! The clock is 3" in diameter and is in really great condition considering it's age and wear, and it still works!