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| 1314 | King Haakon V of Norway issued a decree requiring silver to be stamped with a standard mark. |
| 1380 - 1814 | The union of Norway and Denmark - Danish regulations were in force. |
| 1568 | A goldsmiths' guild was founded in Bergen. |
| 1640-1740 | Guilds were abolished and goldsmiths were directly subordinated to the king. |
| 1740-1840 | The guilds were allowed again but their powers were very much curtailed. |
| 1740 | Henceforth hallmarks appeared for the individual months, first in the form of a fraction. |
| 1766 - 1820 | Hallmarks for the individual months depicted the signs of the zodiac. |
| 1859 | The guilds were once more abolished. |
| 1891 | The law of 6 June introduced a modern system of hallmarking. The hallmark must have the purity in thousandths, the letter "S'' next to the mark of purity, and the name of the maker. The lowest permitted purity is 830/1000. |