Art Deco Sterling Silver Marcasite & Onyx Gemstone Leaf Brooch

Gorgeous Art Deco sterling silver & marcasite brooch.  An almond shaped onyx gemstone bezel set in a flat plain bezel.  Surrounded by a scalloped seashell deco design encrusted with sparkling marcasites stones.  In the center of the onyx gemstone is a sterling silver and marcasite covered branch and leaf design.  Hallmarked on the back in several different places.  “925” in one area beneath the pin, and 2 other hallmarks that look like a fancy letter “M” and the second I can’t quite make out but looks to be 5 letters long or so. 

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