Coulisse Glasses
United States, 1870. Bifocals silver spectacles with coulisse temples. The frame has a different angle in the lower zone to help reading. Patent registered in 1867 by GEORGE D. EDMONDSON. Contained in wooden case.
United States, 1870. Bifocals silver spectacles with coulisse temples. The frame has a different angle in the lower zone to help reading. Patent registered in 1867 by GEORGE D. EDMONDSON. Contained in wooden case.