This is an early owl brooch with yellow glass eyes. The metal is hallmarked for 830 silver. This means the piece is 83% pure silver, and 17% copper or other metals. That is why the metal has varying colors in the metal. The brooch measures 1 5/8" X 1 1/2". The piece is hollow, and weighs 7.2 grms. One of the eyes is very cloudy, and the other is chipped. So, I would say condition is fair. Old C clasp that still works well. I would date this cute Owl brooch at c1900.