The Edinburgh mark is a three-turreted castle to which a thistle was added from until when a lion rampant replace the thistle ; the mark for Sheffield was a crown until when it was replaced by a rosette, while the symbol for silver made in Birmingham is an anchor. London Hallmarks. In addition to the four examples shown below, the head of Elizabeth II facing right was used to mark her Golden Jubilee in and another set in a diamond was used from July to October 1,to mark the Diamond Jubilee. ATG's report of the case. Related Posts: While American manufacturers did not apply assay marks, city marks or date marks, they did apply a maker's mark. The new Birmingham Assay Office was created to be self-supporting with all its revenues coming from charges for assaying or marking.
A selection of European silver hallmarks.
DATE LETTERS - 1773 TO 2019
Assay marking began in Birmingham in However, inrising concerns over the amount of coinage being melted down and used to make silver items meant that the required fineness was raised to the higher Britannia standard. The new factory employed over people, but Boulton soon discovered that having to send all his items to Chester Assay Office for Hallmarking was a serious handicap to his business. Two examples are shown below. Apart from the expense and delay, those articles which did survive the perils of travelling 70 miles each way in horse-drawn carriages, over rutted roads frequented by highwaymen, were sometimes damaged by careless packing, or copied by the Chester silversmiths. Base metal articles plated with a thin coat of gold or silver look like the same articles made wholly of precious metal, at least until the plating wears, and even an expert cannot determine the quality or standard of precious metal items by eye or touch alone. Hallmarks are applied with a hammer and punch, a process that leaves sharp edges and spurs of metal.