Online Encyclopedia of Silver Marks, Hallmarks & Makers' Marks
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Norwegian Silver Maker's Marks III

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Hallmarks have been used in Norway since the sixteenth century. The system included, at various times and in various combinations; city marks, assayer's marks, date letters, date numbers, and maker's marks. The farther a piece was made from the main population centers of Oslo (Christiana), Bergen and Trondheim, the more likely there were to be mark inconsistencies. For centuries, the bureaucracy in control of silver marking seesawed between the Crown and the Silver Guilds, but in 1891, a simplified national system was established that is still in use today.

The current system requires only a silver standard mark accompanied by a maker's mark. The old Norwegian standard of .830 purity silver is still used, but beginning around 1920, .925 purity began replacing it and is now the foremost standard in use. Town names are sometimes included with the required marks and the letters "NM" (Norsk Mønster) are sometimes seen on flatware, this abbreviation is an indication of design patent or copyright.
Below are illustrations of marks used by many of the latter 19th and 20th century silver producers of Norway.

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Norwegian Makers' Mark Menu

A - H          H - K          K - O          O - W

Firm or Maker Maker's Mark Location Comments
Knut Andreas Rasmussen

Karl Rasmussen Jewelry, Oslo
Oslo .
Brødrene Lohne Lohne Bergen .
Thorvald Marthinsen Sølvvarefabrikk marthinsen


Th. Marthinsens Sølvvarefabrikk
Tonsberg Bottom mark used c.1900 - 1925
Bernard Meldahl meldah, oslo Oslo d.1950, succeeded by H. Myhre
Hans Myhre anchor mark Oslo Myhre eventually (c.1950) bought out both the Bernard Meldahl & Hroar Prydz firms
Einar Modahl Einar Modahl Oslo .
Henrik Møller Henrik Moller Trondheim (b.1858 - d.1937)
Brødrene Mylius Brødrene Mylius

Brødrene Mylius
Kragerø The "NM" {Norsk Mønster} is a generic mark, translates roughly as design copyright
Arne Nordlie Oslo .
Haakon Schanke Nielsen Bergen silversmiths Bergen founded 1940s
Norsk Filigransfabrikk

plique a jour spoon
Oslo 1889-1906 & 1910-1931
Norsk Sølvvareindustri Oslo active 1931-1992
Theodor Olsens Eftf Theodor Olsens Eftf


Th. Olsens Sølvvarefabrikk
Bergen bottom mark is earliest, attributed to Theodor Olsen
OPRO Produkter sterling & enamel silversmiths Oslo active 1945-present. Founded by Ole-Petter Raasch Olsen. OPRO acquired the Finn Jensen firm in 1976.
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Norwegian Makers' Mark Menu

A - H          H - K          K - O          O - W

Related Pages at
World Hallmarks
British Hallmarks Explained
Dutch Hallmarks
German Hallmarks pre-1886
German Hallmarks post-1886
French Hallmarks
Swedish Hallmarks
Finnish Hallmarks
Danish Hallmarks
David-Andersen Marks
Georg Jensen Marks

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