This piece APPEARS to be a vintage mold blown factory piece with sommerso stopper, and yet it has an incised signature on bottom "C. Wellman." Diligent internet search has yielded examples with this signature in different forms, all appear to be factory pieces. I'm thinking that the former OWNER signed? To me this is not a studio glass piece. Can anyone tell me who made this (if not "C. Wellman") and when?
Thanks,
Charles.