1960s era Vintage Criss Nylon Diamond Stud Hornrimmed Keyhole Eyeglasses Frame. New old stock frame. There is NO wear or marks of any kind on frame. Mint condition. Ready to have your lenses installed for years of vintage style and fashion that no one else can find.  SIZE 48[]20, 145mm temple length. Frame measures 135 mm wide. Made in the USA. Criss Nylon became famous for their nylon polymer acetate material they use to manufacture their frames, which is ultra lightweight and extremely durable. These are sure to last a lifetime of style and fashion that just can't be found anymore.