This Art Deco jade, enamel and diamond pin by Cartier is rare and collectible. The pin is set with jade pieces that make up the car, with a diamond window and wheels. Black enamel accents the cars design. The pin has French marks and the makers mark for Henri Picque. There is also serial numbers on the pin 176.702. The pin is accompanied by its original Cartier fitted box. The pin is 1.25 inches long and just under 1/2 inch tall.