Vintage green Polaroid clip-on shades ca 1950s

A pair of very thin and very lightweight shade fronts by Polaroid, marked on the nose bride. They simply slip or ´clip´, onto your existing glasses, so there is no need to get anything else but your prescription pair. Will fit most frames. Size: Width 4-7/8 inches, height 1.5 inches. Space between lenses at the top 5/8 inch Size: Width 12.5 cm, height 3.9 cm, Space between lenses at the top 1.7 cm Condition: Small marks of age and use, no big scratches