Beautiful vintage custard yellow vaseline glass lamp, a Stiffel or Rembrandt lamp, I think, though I couln't find a marking or label.
It's heavy brass with milk glass 'reflector' (diffuser shade) like a torchiere shade at the top. The lamp is 31 1/2" tall to the top of the socket, and 36" to the top of the reflector shade.
The wiring looks good and works, the lamp is designed for a three way light bulb. These old three way lights are so nice, it's wonderful to have as much light (or as little light) as you'd like!
There's a little spotting to the metal fittings, but overall this lamp is in very nice condition. The vaseline glass lamp body looks excellent, too.