The two frames to the left are B&L frames with Type 1 AN6531 lenses. The frame at the upper right is made by B… | Sunglasses, Aviator sunglasses, Sunglasses vintage
WW II US Army Air Force - OFFICER AN6531 SUNGLASSES AND MISC. - VET ESTATE! | eBay
AN6531 - Type II, late sunglasses variant? - CREWMAN GEAR - U.S. Militaria Forum