GEORG JENSEN HALLMARKS

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. 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. After that an 830S or 925S imprint was used. (A mark with two towers means silverplate.)

Example of one of the earlier GJ hallmarks. Although this marking might indicate a 1904-1908 date, the fact that it is marked sterling dates it later. This is still a Jensen piece however, as this marking was also used later for other, smaller pieces till 1945.

Example of one of the earlier GJ hallmarks. Although this marking might indicate a 1904-1908 date, the fact that it is marked sterling dates it later. This is still a Jensen piece however, as this marking was also used later for other, smaller pieces till 1945.

Another example of the hallmark pictured above. Again, this piece is after 1945, however the mark is used on a small brooch. You can also see in this photograph that the mark was punch on to the piece after the back was soldered on, leaving a deep impression.

Another example of the hallmark pictured above. Again, this piece is after 1945, however the mark is used on a small brooch. You can also see in this photograph that the mark was punch on to the piece after the back was soldered on, leaving a deep impression.

This is a piece of the early studio silver. the 826 silver content and the"Copenhagen" date between 1907 and 1914 This particular GI is very unusual and probably dates between 1904 and 1908

This is a piece of the early studio silver. the 826 silver content and the"Copenhagen" date between 1907 and 1914 This particular GI is very unusual and probably dates between 1904 and 1908

This is an example of the Classic GI marking inside a circle of beads (used from 1915-1930), as well as the .830 mark used before 1927, denoting the 83% silver content used before going to the sterling standard. Also present is the GI 830S mark as well. Often earlier pieces could be stamped multiple times.

This is an example of the Classic GI marking inside a circle of beads (used from 1915-1930), as well as the .830 mark used before 1927, denoting the 83% silver content used before going to the sterling standard. Also present is the GI 830S mark as well. Often earlier pieces could be stamped multiple times.

This set of marks combines the circle GI mark with Georg Jensen mark from 1915-1930. a similar looking mark is used today. Because it's stamped sterling, it's most likely made after going to the sterling silver standard, dating the piece between 1927 and 1930.

This set of marks combines the circle GI mark with Georg Jensen mark from 1915-1930. a similar looking mark is used today. Because it's stamped sterling, it's most likely made after going to the sterling silver standard, dating the piece between 1927 and 1930.

This old mark has the simple GI inscription as well the the 830 mark and "DENMARK".

This old mark has the simple GI inscription as well the the 830 mark and "DENMARK".

This set of hallmarks combines the 830 silver mark with the GI and, unusally enough, the city "COPENHAGEN" The circled GI marking places it between 1915 and 1930. In this case the .830 silver mark would date it pre-1927, and the city mark was used between 1907-1915.

This set of hallmarks combines the 830 silver mark with the GI and, unusally enough, the city "COPENHAGEN" The circled GI marking places it between 1915 and 1930. In this case the .830 silver mark would date it pre-1927, and the city mark was used between 1907-1915.

This unusual set of cufflinks contains the 830S mark with the square GJ hallmarks

This unusual set of cufflinks contains the 830S mark with the square GJ hallmarks

The current Georg Jensen hallmark bears an uncanny resemblance to one of the older hallmarks. One way of differentiating the two is the 830S mark. Continental silver, which only contains 83% silver, was the older standard used before 1927, when the silversmithy switched over to Sterling.

The current Georg Jensen hallmark bears an uncanny resemblance to one of the older hallmarks. One way of differentiating the two is the 830S mark. Continental silver, which only contains 83% silver, was the older standard used before 1927, when the silversmithy switched over to Sterling.

Here are two stunning examples of the 1933-44 hallmark.

Here are two stunning examples of the 1933-44 hallmark.

This set of hallmarks was from 1945-51, and was used only in the Copenhagen Georg Jensen shop.

This set of hallmarks was from 1945-51, and was used only in the Copenhagen Georg Jensen shop.

The GI hallmark and 830S marks are here again, but the "Importe de Danemark" stamp denotes this as one that was exported to France and sold in the early Paris shop

The GI hallmark and 830S marks are here again, but the "Importe de Danemark" stamp denotes this as one that was exported to France and sold in the early Paris shop

Here's an example of yet another unusal hallmark. You can clearly see the "Georg Jensen" hallmark with the crown which was used between 1925 and 1932. Also present is the GI .925 mark and the designers initials (In this case, Harald Nielsen)

Here's an example of yet another unusal hallmark. You can clearly see the "Georg Jensen" hallmark with the crown which was used between 1925 and 1932. Also present is the GI .925 mark and the designers initials (In this case, Harald Nielsen)

Different hallmarks were often used on different pieces due to space limitations. The second 2 in the model number is slightly cut off, and although the regular Georg Jensen hallmark is present on this example of a post 1945 piece, the GI mark is more common on tiny pieces.

Different hallmarks were often used on different pieces due to space limitations. The second 2 in the model number is slightly cut off, and although the regular Georg Jensen hallmark is present on this example of a post 1945 piece, the GI mark is more common on tiny pieces.

Here's a small iron pin with the aforementioned GI initials.

Here's a small iron pin with the aforementioned GI initials.

Other marks sometimes appear along side the maker's hallmarks. Often times these are simply duty and import stamps.

Other marks sometimes appear along side the maker's hallmarks. Often times these are simply duty and import stamps.

A fantastic example of the variation you might find in hallmarks. Typically the stamps are done by hand on these pieces. These two sets of hallmarks are from identical bracelets, however the alignment and placement of the hallmarks is quite different.

A fantastic example of the variation you might find in hallmarks. Typically the stamps are done by hand on these pieces. These two sets of hallmarks are from identical bracelets, however the alignment and placement of the hallmarks is quite different.

Year Marks

Below are examples of when year marks were used from time to time to mark specifically the year of manufactury of a particular piece..

A rectangle with the year stamped inside appeared on a few pieces from time to time, particularly between 1918-1921

A rectangle with the year stamped inside appeared on a few pieces from time to time, particularly between 1918-1921

This is an excellent example of the three towers mark, denoting the year of its manufactury (1926) Also present is the GI 830S mark. The CFH stamp is actually a guardian stamp and was used between 1904 and 1932.

This is an excellent example of the three towers mark, denoting the year of its manufactury (1926) Also present is the GI 830S mark. The CFH stamp is actually a guardian stamp and was used between 1904 and 1932.

The U10 mark present on this Nanna Ditzel piece is actually a year mark. After Georg Jensen had purchased the A Michelson silversmithy, they began introducing the Swedish dating system to some pieces. the U10 follows with the chart HERE to show that this particular piece was made in 1994. (the engraved dates were added later at the bequest of the former owner)

The U10 mark present on this Nanna Ditzel piece is actually a year mark. After Georg Jensen had purchased the A Michelson silversmithy, they began introducing the Swedish dating system to some pieces. the U10 follows with the chart HERE to show that this particular piece was made in 1994. (the engraved dates were added later at the bequest of the former owner)

Designer Initials and Marks

Designer's name, initials, or personal mark have also been added. These were more often used to recognize a designer who was quite influential and notable for the time. For a chart to determine the designer, click HERE