Left temple exterior is marked "12". Bridge style and temples suggest c. 1800, give or take 25 years.
Temples extend and retract using a slide mechanism. Eyewear passed the silver acid test, but the case did not.Given age, I have assumed spectacles are coin silver (90% silver to other metals) versus sterling silver (92.5% silver to other metals). Temple length: 4" when retracted, 5.5" when extended. Lens: 1-3/8" Wide x 1" Tall. Silver weight cannot be accurately determined since non-silver parts cannot be separated from silver content. Total weight is 20 grams, including lenses, but not including case.
Only mentionable issue on spectacles - Left retractable earpiece has lost part and is held together with thread, as photographed. Lenses in excellent condition -- No chips, flakes, or breaks on lenses. Case is in good shape -- biggest issue appears to be dirt accumulated around the bottom where soldered on -- it looks discolored. Lid has 3 pencil-point pings. Hinge opens / closes as it should.
Note some photos appear redundant because I take photos from all possible angles. On symmetrical items, these photos may appear redundant when there are no distinguishing differences or condition issues between side views.All dimensions and weights approximate. I try to list EVERY flaw which would be commented on something in an antique or vintage condition - this does not mean all imperfections resulting from normal wear & use require comment. My goal is to have no rude surprises upon receipt.