Item #: 1831011 This is an authentic TIFFANY Sterling Silver 1837 Interlocking Circles Pendant Necklace. The necklace is crafted of sterling silver and features two interlocking circle pendants accented with the signature '1837' engraving. Follow this item for alerts. Tiffany is a registered trademark of Tiffany. FASHIONPHILE is not affiliated with Tiffany.