Can anyone identify BLUE uranium "custard" glass?

Measurements: 5 3/8 high, 3 5/8 wide at top, 3" bottom.
I collect antique Vaseline & uranium glass. When I inquired about a custard piece that fluoresced, the seller said he had two blue opalescent "like custard" hand-painted goblets he purchased in France years ago. I haven't yet paid for them, but have them in my possession.
The hand painting on them is, as my husband says, "so ugly, they're pretty," and I agree. They're different from anything I've ever seen. No pontil on the bottom. I saw a similar piece for sale that described it as being molded in 3 separate pieces from top down; then connected. That made sense, as there's no seam. I would love to know if anyone has any information regarding antique or reproduction blue uranium glass (they're hefty!) goblets. French or otherwise. Hand painted or not. Thanks!
Ellen