An 'Atlas' pendant necklace, by Tiffany & Co.
The pendant designed as two concentric circles separated by four Roman numerals, the inner circle decorated with brilliant-cut diamonds, mounted in 18 carat white gold, diamonds approx. 0.20ct. total, signed Tiffany & Co., maker's mark T&Co., UK hallmark, lengths: pendant 1.9cm., chain 40cm., maker's case