Offered here is this Art Deco Sterling Silver Marcasite Carved Shell Flora Cameo Brooch Pin.  Cameo brooch measures 1-3/4 x 1-3/8" with 1/4" thickness front to back. Cameo itself measures 30.8 x 23.3mm and each of the 2 bezel set marcasites is about 2mm. Any darkness in photos is due to camera reflection. This vintage cameo shows one hairline just to the right of Flora's face.