Absolutely cool and unusual! The brooch has been fashioned from a genuine pair of glasses. Not for a doll. I cannot guarantee but, due to the size and true components of the piece, I'd guess at a salesman sample. The pin stem is actually one of the earpieces crafted into a point. Green glass lenses. Brings to mind the eyewear of the 1960's although the glasses appear to be a little older.
Measures 3 inches across and are 1 1/8 tall. I can see these being worn off a chain as a pendant too. A charming and fun conversation piece.