Renaissance Signet Ring. Switzerland (?), c. 1600. "Surely a ring used for sealing, this heavy large signet may have been worn on a chain or else the index finger of a large man's hand, as appears in paintings of the period. The crossed keys symbolize the keys of the kingdom of heaven that bestow on Saint Peter the authority to bind (Matthew 16:18-19)." Book Rings, Men's Rings, Jewelry Rings, Jewellery, Antique Diamond, Antique Rings, Antique Jewelry, Renaissance Jewelry, Ancient Jewelry