The Danish krone (Danish pronunciation: [ˈkʰʁoːnə]; plural: kroner; sign: kr.; code: DKK) is the official currency of Denmark, Greenland, and the Faroe Islands, introduced on 1 January 1875. Both the ISO code "DKK" and currency sign "kr." are in common use.Note denominations are 50, 100, 200, 500, 1000kr.