Vintage Ketcham & McDougall Retractable Mechanical Dance Pencil/Opera Glaaa Pin

This vintage early 1900's Brooch is round gold filled fob pin with retractable chain. The pin has an etched design with lines on the front. In the middle of a double ring it is marked "KETCHAM & McDOUGALL," and "EAST ORANGE, N.J." There is a "C" hook clasp with a bent gold strip marked "KETCHALL" which is used to secure the arm of the pin in the "C" hook. A 16" gold chain retracts inside of the pin with a good spring action. It is actually in great condition consideringthe age.