I am obsessed with these glasses. These are beautiful and in EXCELLENT condition from the Art Deco era. Please look at the design on the handle. It's exceptional work. Whoever designed these was a pro. They are stamped 14K and something that looks like "JP". They are bi-focal, so you can look at the program and then at the opera singers with the same pair of glasses. They have a nifty spring action, so they fold down small, and snap open for opera emergencies.