Nautilus shells are considered living fossils as they have been in existence for over 450 million years. Designers' Details The nautilus shell, a victorian symbol of royalty and beauty, combine with the inherent strength of the shield to be the perfect accessory for one bad babe! Specifics oxidized sterling silver shield signet ring w/ engraved initial N (shown) please specify initial in notes section when ordering Please allow 7-10 business days for order processing.