BEAUTIFUL NECKLACE IN THE SHAPE OF A SERPENT in braided yellow gold (750), with a chased mouth open on a line of teeth and a bifid tongue. The head is adorned with an emerald cabochon, and the eyes with small old-cut diamonds in a closed setting. The tail is wrapped around the body. Ratchet clasp. Goldsmith's hallmark [A.G. coachman's whip]. Gross Langoulant & Compagnie. Eagle and Rhinoceros head hallmarks. French work, late 19th century. Gross weight: 36.9 g. - Length approx. 40 cm. Yellow gold (750) polished brilliant-cut ring, probably reported. Some crushing and small tears, minor oxidation, especially at the head. The famous GROSS LANGOULANT & Compagnie factory was located at 79 rue du Temple in Paris between 1884 and 1907. Founded in 1860 by Auguste GROSS (1835-1909), it initially produced a wide variety of hollow gold chains, thanks to the development of steam engines and the time-saving, gold-saving stamping process. These processes enabled low prices to be achieved. Then, from 1883 onwards, under the management of Alfred LANGOULANT (1851-1907), the company diversified, producing a wide range of jewelry for all budgets, but always of the highest quality. The company's high output made it one of the leading suppliers to the French market at the end of the 19th century.