Special Features
42 by 52 eye; temples 6.500 in. W/plastic covers; temple section alternate material phosphor bronze; nose pads shall be clearcolorless cellulose acetate or acetate butyrate; temple covers shall be vinyl acetate or vinyl or butyrate; pad insert shall be nickel rhodium plated; pad washer shall be monel 400 material; temple screws shall be leaded nickel slver; pad arm shall be nickel silver overplated with dull nickel and chromium electroplate
