A George III silver tea caddy

A George III silver tea caddy, by John Carter, London 1776, oval form, engraved with a foliate garland and bright-cut borders, the hinged cover with a foliate finial, engraved with a crest, with a lock and key, length 12.8cm, approx. weight 13oz. The crest is that of Stafford of Blatherwick, Northamptonshire.