UNCOMMON 1935-40 JEWELED DUETTE BROOCH EMERALD CUT RUBY SAPPHIRE CRYSTALS (all prong-set) in pairs and trios in dense carpet of crossing loops of GEMCUT DIAMOND CRYSTALS (hundreds, all bezel-set).  All HIGHEST QUALITY JEWEL-LIKE CRYSTALS SET IN REALISTIC GOLD-LOOK CELLS. “PAT. 2045385” on unusual mechanism with pinback that holds the two halves of this BEAUTIFUL, UNUSUAL BROOCH together.  No defects.