Antique art deco french onyx sterling silver marcasite pin hotsell brooch

This is a very beautiful, old and unique ART DECO FRENCH ONYX STERLING SILVER MARCASITE c. 1920 pin brooch (weight 5.3g). The pin has a marvelous Art Deco shape with marcasite sterling silver and onyx (bottom has FRANCE). It measures 3" x 5/16". The brooch hotsell is in very good condition.
0.7 MR