Christine, the Tiffin ones are so close, but the handles look a little different to me. The Tiffin handles look slimmer with a more distinct rib. Maybe my vase is modeled on theirs, or is just a smaller size. I don't recall anything by Tiffin that was stained or flashed. Did they do this?
The glass of my vase is as thick as a generic type Murano vase. I'm not sure if Tiffin did anything this thick. Most of the things I've seen by them have been slimmer glass. (Something that just dawned on me, though, is maybe it is something along the line of US Glass, because it is so similar to the Tiffin.)