I am not related to this family and not sure where exactly to post this. But while antique shopping one day with my son, he came upon a pair of what I thought were binoculars but what others have told are opera glasses. The address label on the inside states. They are in a black leather? flip lock, case, some old tape on the outside. . My son collects various things, but this had a name in it. So here it is.
Miss E.G. Ofeldt
73 Gen Greene Ave
Trenton, NY 08618. USA.
Would this help anyone in their searches. They were found in MI.