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The Chester Assay Office


Chester Date Letter sequences


Plate was assayed at Chester from the early 15th century. Marks were regulated from about the end of the 17th century. The Chester office was re-established in 1701 and closed in 1961. Prior to the establishment of the Birmingham Assay Office in 1773, most of the plate produced in the Midlands and the north west of England was "touched" at Chester. The date letter which followed a 25 year cycle was changed in July.
©Åntidata 1997