signet

noun

Etymology: From Old French signet (“small seal”), from Medieval Latin signētum, diminutive of Latin signum (“sign”).

1. An object (especially a ring) formerly used to impress a picture into the sealing wax of a document as a proof of its origin.

   “I had my fathers Signet in my Purse, / Which was the Modell of that Danish Seale:”

   “To carry pure death in an earring, a casket, A signet, a fan-mount, a filigree basket!”