Vintage American Optical AO Safety Z87 Eyeglasses Full Brown 。Vintage American Optical (AO) Safety Z87 glasses — a true piece of American workwear heritage. Z87 safety rated with metal hinges and original temple arms (135mm length). Marked \"AO SAFETY Z87\" and \"135\" on temple arms with classic AO branding on metal temple plaques. Stamped \"Frame Canada\" — authentic production from the 1980s–90s. Clear lenses with a beautiful brown ombré/amber fade. Highly sought after by collectors of vintage industrial and workwear aesthetic. Temple arm length: 135mm Marked: AO SAFETY Z87 / 135 / Frame Canada EUC. Lenses are clear with natural amber/ombré patina. No cracks, chips, or broken hardware. Hinges function properly. Light wear consistent with vintage age. Vintage AO safety glasses, American Optical Z87, industrial workwear glasses, retro safety frames, AO 135 glasses, vintage industrial eyewear, made in Canada AO frames