An antique Art Deco style sterling silver pin brooch by Vincent Sorrentino, The Uncas Manufacturing Co. The brooch is made in the shape of five horse heads with reins and adorned with an embossed and etched design, and red tone eyes. Marked with a sterling silver hallmark and other marks, on the back. Circa: 1930s. A pin on the back. Weight 5.35 grams. Founded in 1913 by Italian born Vincent Sorrentino, 1892 to 1976, The Uncas Manufacturing Co. has become the legend in the world of costume jewelry. Located in Providence, Rhode Island, the company became known as Americas Largest ring house. According to advertising by the company itself, Jewelers Circular Keystone, September, 1948, it produced costume jewellery, novelties, and plastics. As for Uncas Manufacturing Co., Vincent Sorrentino first registered the Sorrento company in 1911 in Providence, Rhode Island. The earliest Sorrento jewelry is difficult to find now and they are a collectible rarity. In the early 1920s, Sorrentino renamed his company into Uncas Manufacturing Co. Noteworthy, the Sorrentino family still continues the jewelry business. All unmarked gold and silver jewelry, including those bundled with marked pieces, have been tested using a Niton DXL XRF Analyzer which is an x ray style tester which is used by most gold processing facilities, gold recyclers, refiners and or mining operations in the industry. Antique and Vintage Brooches, Fashionable Jewelry, and Collectibles.