From my collection American Optical Safety Goggles Vintage circa 1950s Perhaps Earlier Dark Green Lenses AO 2.5 etched on top of both lenses Translucent Gray Frames AO logo at each Temple points Metal Mesh Side Eye Protectors Fold in for storage showing some Patina/ rust Lenses are in excellent condition Pics 4,5&6 right eye Pics 7&8 of left eye Get these for your collection before they are gone See Photos Ask Questions