ISSER SINGER & SONS Large Antique Silver Tone with Mint Rhinestone Art Deco Leaf Brooch is a clip back. It measures approximately 3 by 3 1/4 inches. There is one stone missing near the top of the piece. This dimensional brooch is a very rare collectible from the deco era. The name of this company seemed to have changed several times, but the tag design stayed the same. Please see Illusion Jewels for more information.