You are bidding on a vintage mid century US Military/B&L horn rim eyeglass frame. Back of frame is stamped B&L 50-24. Temples are stamped USS.
Frames:
Good condition, normal wear. May need reshaping for a proper fit.
Lenses:
50mm lens size. These have no lenses, ready for you to have filled with your prescription or tinted lenses.
Measurements: