In 1619, Denmark began minting silver coins imitating Russian kopeks. The Danes called them "doennings." The obverse of the coins depicted the traditional Russian horseman with a spear, while the reverse bore the name of the Danish king Christian IV, or the names of Russian tsars.
The minting of Russo-Danish kopeks with the name of Christian IV may also have been sanctioned by the Russian government, due to the need to provide the inhabitants of Lapland—claimed by both Russia and Denmark—with currency. However, the placement of the names of Russian tsars on coins minted in Denmark classifies them as counterfeits.