▁sk illing ▁( called ▁sk illing ▁species ▁on ▁some ▁issues ), ▁each ▁mark ▁therefore ▁sub div ided ▁into ▁ 2 4 ▁skill ings . ▁It ▁was ▁replaced ▁by ▁the ▁Norwegian ▁kr one ▁when ▁Norway ▁joined ▁the ▁Sc and in av ian ▁Mon et ary ▁Union . ▁An ▁equal ▁val ued ▁kr one / k ron a ▁of ▁the ▁mon et ary ▁union ▁replaced ▁the ▁three ▁curr encies ▁at ▁the ▁rate ▁of ▁ 1 ▁kr one / k ron a ▁= ▁ ▁Dan ish ▁rig sd aler ▁= ▁ ▁Norwegian ▁spe ci ed aler ▁= ▁ 1 ▁Swedish ▁r ik sd aler . ▁ ▁Co ins ▁In ▁ 1 8 1 6 , ▁co ins ▁in ▁circul ation ▁from ▁the ▁previous ▁currency ▁remained ▁in ▁circul ation , ▁with ▁only ▁ 1 ▁sk illing ▁co ins ▁being ▁mint ed . ▁A ▁new ▁coin age ▁was ▁introduced ▁in ▁ 1 8 1 9 , ▁consisting ▁of ▁co pper ▁ 1 ▁and ▁ 2 ▁sk illing ▁and ▁silver ▁ 8 ▁and ▁ 2 4 ▁sk illing , ▁ ▁and ▁ 1 ▁spec id aler . ▁Silver ▁ 2 ▁and ▁ 4 ▁sk illing ▁co ins ▁were ▁introduced ▁in ▁ 1 8 2 5 , ▁followed ▁by ▁co pper ▁ ▁sk illing ▁pieces ▁in ▁ 1 8 3 9 , ▁silver ▁ 1 2 ▁sk illing ▁in ▁ 1 8 4 5 ▁and ▁silver ▁ 3 ▁sk illing ▁in ▁ 1 8 6 8 . ▁It ▁was ▁made ▁out ▁of ▁Iron . ▁ ▁Bank notes ▁N org es