This is an authentic TIFFANY Sterling Silver 1837 Lock Charm Necklace. The necklace is crafted of round chain links of sterling silver and features a link chain with a lock pendant engraved with the 1837 logo motif. This is a classic necklace with the signature style of Tiffany! Follow this item for alerts. Tiffany is a registered trademark of Tiffany. FASHIONPHILE is not affiliated with Tiffany.