LADIES 1930'S MILLEFIORI PIN BROOCH. THIS BROOCH IS SQUARE AND DELICATELY MADE ( Millefiori Glass ornamentation made from canes of colored glass that are layered, and sliced to form patterns, flowers or mosaic effects ) AND APPEARS TO BE SET IN PINCHBECK ; (Pinchbeck A gold simulant, invented circa 1720 by Christopher Pinchbeck, which is comprised of a mixture of copper and zinc) BUT IS STAMPED 800. (STERLING) MADE IN ITALY. HAS A VERY OLD STYLE SECURE PIN BACK.