Cameo Brooch with safety chain orders

This carved shell cameo brooch has a C-clasp, 3 1/2 " safety chain and a concave back. The very detailed carved scene is of orders a woman standing outside in front of a building with a building in the back ground. There is a repair to the clasp on the back but otherwise this brooch is in VERY GOOD VINTAGE CONDITION. Fairly large for a Cameo it measures 2 1/4"x 1 3/4 ". Questions ? Please call 1-207-865-6191.