Thank you very much for the information...this is new territory for me

                               I have many other pieces:  cordial, highball, champagne, white wine, and can post more if it would help.  I recall that they were purchased in Connecticut...

Inherited china, porcelain, crystal, from grandmother and mother (I'm senior citizen) and house sold so have many pieces that I cannot locate information on.  If there is an organization that can do this...