Copper-alloy, 3.52 grams, 29.59 mm. 16th century AD. A cast key with a small, rectangular bit, elliptical-section shaft and ribbed collar detailing near the bow. The bow is formed as a kidney-shaped loop with slightly scrolled ends. Reference: London Museum Medieval Catalogue 1940, reprinted Ipswich, 1993 p.144. Very fine condition, complete. Provenance: found East Tilbury, Essex, England.