Item #: 1890620 This is an authentic TIFFANY Sterling Silver Rubedo 1837 Interlocking Circles Long Necklace. The necklace is crafted of sterling silver and 'Rubedo' metal, and features interlocking rings engraved with the signature '1837 T&Co' logo. Follow this item for alerts. Tiffany is a registered trademark of Tiffany. FASHIONPHILE is not affiliated with Tiffany.