Hi ,
Small world isnt it , although my area is 17thc and 18thc drinking glasses ,I know Jim also has an interrest in this area,I have known both Jim and his wife for many years and talk frequently, he is living in CT USA ,
I note you are in Scotland , Hee Hee and i am a Scot living in England , and the maker is american , and you bought the piece in London , like i said a small world!!!!,Jim will reply to me soon so i will post what he says and also invite him to join the forum so others can discuss his glass blowing career and his products.
Cheers,
Peter.