

A castle over a lion passant
Norwich was established as an Assay Office centre in 1423 although goldsmiths have been recorded as working in the city from as early as 1142. Although Norwich was re-confirmed as an Assay Office by the act of 1701, it did not in fact re-open due to lack of demand. The town mark of a castle over a lion passant was joined in 1581 by a crowned rose which was perhaps used as a standard mark. A rose sprig has also been recorded 1643/88.