Craig, wish I could give you more info than "I found it at an estate sale" - but that's all I've got. I bought it, the other "knuckle" vase, and a ruby cut to clear piece that really looks like English Regency period but now I wonder if it's not Czech also. I'll start another thread on that piece so as not to confuse the issue.
The sale was run by the bank, and they are not allowed to give any personal info regarding the previous owner - not even their name, so we're kind of stuck on provenance.
Again, I'm very thrilled, and thank you so much!
Kelli