I initially thought it might be American Optical, but I can't confirm, so please consider it as a no-brand item. I've attached images of where I purchased it. It's a pair of sunglasses with yellow lenses. There's a "12k" stamp. The lenses are non-prescription. They are round. There are some scratches and distortions. Search terms: American Optical american optical Lloyd Hakusan Megane ayame TENDERLOIN At Last & Co. vintage Vintage optical Ray-Ban Rayban B&L Bausch & Lomb Shuron