
At least the response wasn't "brand new, made in China, from a discount store."
I do think it is a quality piece.
But you never know who might know something here. I was able to get a wonderful american studio piece identified, because the artist, who is no longer working as a glass artist, but writing books, for which he is now much better known, is a friend of somebody here.
Are you absolutely sure there are no markings on it, whatsoever?