American Optical Original Pilot Sunglasses | Prescription 。Vintage 1970s military-issue aviator flying sunglasses with plum-tinted aviation glass lenses and cable-temple wraparound arms, supplied through Protective Optics for U.S. aviation use. These are true flight-spec sunglasses, not fashion retail eyewear. The cable-style temples are designed to secure the glasses behind the ears for use with helmets, headsets, and oxygen masks. This design was used for military and professional aviation rather than civilian sunglasses. The plum-tinted laminated glass lenses are original and include the optical calibration marking used on aviation-grade lenses. This tint was selected for glare reduction and improved contrast in flight and outdoor operations. This set includes the original Protective Optics hard case and the NATNATS-marked fog-repellent cloth issued for U.S. Navy and military optical supply. These markings indicate government aviation distribution rather than consumer retail packaging. Gold-tone metal aviator frame with center ring bridge and sweat bar, classic 1970s military flight style. ⸻ What is included • Plum lens aviator sunglasses • Protective Optics hard case • NATNATS fog-repellent cloth ⸻ Condition Vintage pre-owned condition. Lenses show light surface wear and age-related internal clouding in a small area consistent with original laminated aviation glass from the 1970s. Frames and cable temples remain solid and functional. Case and cloth show normal age and use. All details are shown in the photos.