Italian alabaster table lamp, 1930s vintage, not marked or signed that we could see. It's 12" tall to the top of the light bulb socket, and 20 1/2" tall to the top of the finial.
The lamp has been rewired at some point, and works fine though the cord looks a little clunky. The brass fittings are beautifully tarnished from age, and the stone lamp body looks good (very little chipping or scratching).