A Wonderful Antique Connemara Marble Brooch with Marcasites, Vintage Celtic Irish Jewelry, circa 1900-20's. The center of this lovely antique pin holds genuine connemara marble cabochons arranged in clover form. It is adorned by sparkling antique marcasites. The setting is vintage sterling silver and has hallmarks on the inside of the shank. I was not able to date the hallmarks, however it appears to be a 1900-20's Era piece from the materials used, workmanship and the collection from which it came. Overall the pin measures about 2 inches long by about 3/4 inch wide. A lovely a rare antique find. Photos show earrings that are no longer available. This listing is for the pin only.