Hello, I have 2 vintage art glass lamps for sale. The first is made and signed by Douglas Becker in 1995. Signed on the shade and the base. It has a wonderful opalescent quality to it. The next is also signed on the shade and base by John Cook, Phoenix studios, 1979, out of California. It is a nouveau style with a pulled feather design. both are in excellent condition and work beautifully. I would like $500.00 each. Thanks!