60s mod vintage sunglasses, Twiggy style w/ huge lenses, Italian designer shades

60s vintage sunglasses marked Italy - these look perfectly Twiggy, and are in very good wearable condition. We saw only the C mark shown, not sure of the maker here?

These measure 2 5/8" x 2 1/4" over the big bug eye lenses, and 5 1/2" across the front. They've been gently used, and there's fairly minimal scratching to both the lenses and the frames.