ART DECO STYLE MOTHER-OF-PEARL, MABE PEARL AND HEMATITE BROOCH.Created and designed by Sylvia Gottwald. Composed of carved, square mother-of pearl-plaque centered with large gray mabe pearl surrounded by hematite and black rubber coil ring. - D: 2 3/4 in. by 2 3/4 in. Estimate $500-700