Bike Lamp. Material: metal, glass. Size: 2 1/2" diameter base x 6 7/8" H. Description: chrome finished metal - stamped on reverse side: "20th Century Mfg. Co. Made in U.S. of America Patents and design applied for" - screw loosened clamp at back of base - clear glass front lens - red glass reflector on one side - green glass reflector on other side.
