Hi Patrick, we think we might have identified the maker's mark on your grandma's gold wedding band -
Buffalo Jlry. Mfg. Co. Brisbane Bldg Buffalo, N. Y.
There have been a number of enquiries about the same jewelry markings - XXX. Please take a look at the following link in the hallmark forum on Antique Jewelry Investor as there is more information about this mark and also a photo of the maker's mark has been uploaded....
