Vintage Silhouette Rectangular Aviator Glasses Frames - 56mm, Unisex

Vintage Silhouette aviator frames, most likely from the 70s. Marked "MOD 316 135". Pewter Blue Metallic; "56-16-135" size, unisex style. Frames are on standard side. Currently, frames have prescription lenses, so they'll have to be replaced. Solid condition.