Under the Danish Hallmarking Act of 1893, the content standard for all silver was set at 826 parts out of 1,000, which is slightly lower than the standard for sterling which is 925.
The remainder is usually copper with very small amounts of iron, lead and traces of other metals.
In England silver has been marked in some manner since the 12th century when it was first regulated by Parliament.
The marks made it possible to trace the maker and the place of manufacture.
The Danish mark, 826S was used until about 1915 when silversmiths raised their silver content to 830 and eventually to 925.
Georg Jensen did not switch to the sterling standard until 1927 although he occasionally made special orders in 925S for the American market much earlier.
Until 1961, Danish silver was identified by a stamp with three towers. (A mark with two towers means silverplate.)Other hallmarks can also include Swedish year markings and The Designer Initials which can further assist in dating a particular item. Not all items with a Georg Jensen hallmark may in fact be original pieces.
In some cases, some items on the resale market are an amalgamation of Georg Jensen items and either original silver work, or the silver work of other companies.
Depending upon the font used for the series of date letters, the letter i, j or l is usually omitted to avoid any possible confusion between them.As a result the date letter cycle is usually 25 years as opposed to 26.For example, due to the very simplistic font currently in use, it was decided that the letter ‘i’ should be omitted in 2008, with ‘j’ used instead and ‘l’ used in 2010.Hello, Well, it is difficult to say whether or not the ring could be from the Art Nouveau period, because it does not have any defining characteristics or hallmark stamps from that time.I would like to know why the seller of the ring believes that it is from the Art Nouveau period.