Beautiful unmarked glass table lamp, with white milk glass overlay cut to clear cranberry glass beneath. Czech Bohemia, or Sandwich glass? We don't know, I'm sorry. We're guessing it's mid-century vintage, probably not Sandwich? Unless they've made 20th century pieces.
This is about 18 1/2" to the light bulb socket, 26 1/2" to the top of the finial. It looks as though this is all original wiring, it's working fine.