Amboy Works, N.J. Geometric Leaded Glass Table Lamp
Unsigned. Measuring 22 1/2" tall with a shade diameter of 19 1/4". A full sized domed leaded glass shade with an irregular border in incredible colors of purple, salmon/pink, yellow/amber, greens and red. The finial is original and the fitter opening is 2" wide.
Ed. Original Attribution of Gorham changed to: Amboy Works. Source: Reed & Barton Archives 1906-1911. Similar examples.
From an Ebay Auction.