We think that Jefferson Glass made these pancake french opalescent coin dot lamps in the 1930's. Previously thought they were made by Fenton, but Fenton's chimney is shaped like a pulled tulip -- not the bulbous shape seen here. 2 are available, one has a rim-flake on the bottom of its chimney, hidden in socket. Otherwise, both in excellent condition. They stand 11" tall and about 8" wide at the base. Original wiring (2-prong plug).