Here is an excellent early incandescent lamp for serious Edison collectors, the Edison "Frosted" Lamp. This Edison exterior etched frost incandescent lamp has a hairpin "U" shaped filament made of bamboo fiber. This lamp also has an "Edison" paper label with a Patent date of Feb. 14, 1880. Edison worked throughout the decade of the 1880's to perfect his bamboo filament for his long neck lamp. Edison's famous bamboo hairpin filament created the foundation of his great success. This lamp also has his plaster of Paris filled, rolled brass collar screw base, called the Edison standard base, as well as his signature flat button contact. The "Edison General Electric Company" produced this lamp between 1889 and 1892, before Edison's companies merged with the great Thomson-Houston Electric enterprise to form the huge company we know today as simply General Electric. This extraordinary frosted lamp is a great piece of that early Edison -ian history.