True vintage B&L Ray-Ban Bausch & Lomb USA Timberline ski sport sunglasses circa 1970’s. Made in USA. Unisex. New and never worn NOS, but have imperfections from 50+ years of storage. Ambermatic mineral glass lenses with silver double gradient mirror (DGM) on the outside. Gold mirror on the inside. The lenses are made from pure optical glass and are ground and polished to precision-optics standards. Pre-B&L etching, non-prescription and ready for wear with 100% UV protection. Ambermatic lenses are made of light-sensing glass that self-adjusts color and density for varying light & weather conditions. Color changes from haze-cutting amber under overcast skies to glare-blocking brown under warm sunny conditions or dark gray under cold sunny conditions. Hairlines and pinpricks possible from storage and right lens has a vertical hairline scratch at bottom right corner. It’s very light and does not go through the entirety of the mirror. See closeups. Retro cool acetate/nylon frame features 3 layers of coordinating hues: tan, white, and navy blue. The inside right temple is impressed with B&L Ray-Ban U.S.A. The inside left temple is impressed with TIMBERLINE. There are slight hairline scratches and/or light marks to the frame. Face frame isn’t symmetrical and will need to be adjusted by an optician or optical or sunglass shop. This is a free service. Frame: 142mm L x 55mm H Hinge to Hinge: 132mm Temple: 140mm Lens H: 50mm Lens W: 56mm horizontally Lens W: 66mm diagonally