Very Cool pair of vintage

AO American Aviator

Military Issue

HO High Optical

1/10 12k GF

Pilot Sunglasses

Size 6 1/4

No case included

Please see all the photos for clarification of style, model, condition.

Bought as is.. could use an adjustment/repair

Also a photo of the research information for the HO marking on the frames.

This is what was found on research:

On American Optical (AO) sunglasses, the "HO" marking most likely refers to the "High Optical" quality of the glass lenses. This marking was used on vintage military-issue aviator sunglasses, indicating they were made with a high-quality glass called "True Color" glass, which provides superior clarity