Otis Sterling Silver Necklace Amethyst Paste Pendant. Gorgeous 1940's OTIS sterling amethyst and diamond paste necklace. The large center pendant is studded in clear pastes with the center large faceted, prong set amethyst paste. The square sterling chain links have clear pastes and is 15” long. The fold over clasp is covered in pastes and clicks shut securely. The necklace is signed OTIS STERLING both on the back of the clasp and the back of pendant. Necklace is15" long and the pendant is 1” wide x 1.25" long including the bail. Approximately 48 grams.