This is the older Boston era Guglielmo Cini mark next to the shield, used before moving out West.
Don't you know a Theater Arts Person who deserves this? You? But of course! To earn free USPS/Priority/Ins/Track please mail your $198 USA check or USPS Money order to: Mimi Dee Artwear - POB 458 - Methuen, MA 01844 (PS: same address > 12 years!)