I believe that this cameo pin is a reproduction of a much older piece. The cameo is made up of a celluloid profile of a woman attached to a black glass base. The frame looks to be stamped brass. There are four groups of black enamel designs on the frame. The pin measures 1 7/8" X a tad over 1 1/2". There is some tarnish on the right side of the brass setting. I have not tried cleaning the piece. The cameo itself is in excellent condition.