Antique American Optical (AO) metal eyeglasses case, circa 1930s.

The case is chrome and black enamel, which looks a lot like Ronson cigarette cases. It's possible they made the case for AO, but that's just a guess.

The velvet-like fabric inside is coming unglued and the lid liner is loose. We are not sure if it is original or replaced, but can be reglued. 

There is general wear from age overall, such as scuffs and scratches. See all photos.

Measures about 5-1/8" long x 2" wide x 5/8" thick.