Item #: 1211612 This is an authentic TIFFANY Sterling Silver 1837 Circle Lock Pendant Link Necklace. The necklace is crafted of sterling silver and features a circle link chain and a round lock charm engraved with the signature '1837' message. Follow this item for alerts. Tiffany is a registered trademark of Tiffany. FASHIONPHILE is not affiliated with Tiffany.