1669 Danmark 4 mark Frederik III Mysteriekrone, 1+

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Denmark – Frederik III, 4 Mark 1669, “Mystery Crown”

This rare 4 Mark coin of 1669 belongs to a group of Danish crowns from the reigns of Frederik III and Christian V known in numismatic literature as the “Mystery Crowns”. The term reflects the fact that their origins remained uncertain for many years. Their designs and die engraving differ from those of regular Danish issues, although they bear the same royal symbols and denominations.

The Danish numismatist Sven Aagaard investigated these coins through extensive die studies. In 1994, he published his findings in Mysteriekroner – samtidige, udenlandske kopier af københavnske kroner fra Fr. III og Chr. V (“Mystery Crowns – Contemporary Foreign Copies of Copenhagen Crowns of Frederik III and Christian V”). His research established that the Mystery Crowns formed a distinct group, with no die links to the regular coinage produced in Copenhagen.

Aagaard identified them as contemporary foreign imitations of Danish crowns, produced for circulation as ordinary currency. Their exact place of manufacture remains unknown, although a North German origin has been suggested.

This 1669 issue, catalogued as Hede 113C, Schou 26 and Aagaard M69-1, is therefore an example of a contemporary coinage imitation whose place in Danish numismatic history was only clarified through modern die research.

Denmark
Frederik III, 1648–1670
4 Mark (Krone) 1669
Silver / 20.94 g
Grade: 1+
Hede 113C / Schou 26 / Aagaard M69-1
Rare – Contemporary foreign imitation, “Mystery Crown”