1957 Fob - 14k yellow gold Sigma Xi with watch key 4.9g JR497

Fob - 14K yellow gold Sigma Xi with a watch key on the bottom. Sigma Xi was founded at Cornell University Honor Society for scientific research in 1886. This key features a monogram of the Greek letters. The Sigma is detailed with scrollwork. The back is inscribed "Paul Purpura 1957." It measures 40mm long x 15mm wide. It weighs 4.9 grams of 14K gold. Use as a pendant on a chain or as a watch chain fob. No Hallmark, tested for 14K