▁and ▁ 2 mm ▁in ▁thick ness . ▁It ▁featured ▁on ▁its ▁ob verse ▁the ▁mon ogram ▁of ▁King ▁Christian ▁X ▁of ▁Den mark , ▁and ▁the ▁crown ▁on ▁the ▁reverse . ▁It ▁was ▁made ▁of ▁al umin ium ▁bronze ▁and ▁shared ▁its ▁design ▁with ▁the ▁kr one ▁coin ▁of ▁the ▁time . ▁Its ▁last ▁mint ing ▁was ▁in ▁ 1 9 4 0 ▁and ▁it ▁was ▁demon et ised ▁on ▁ 3 1 ▁December ▁ 1 9 4 2 . ▁ ▁The ▁present ▁fifty ▁ ø re ▁coin ▁was ▁introduced ▁into ▁circul ation ▁on ▁ 3 ▁July ▁ 1 9 8 9 ▁after ▁the ▁demon et isation ▁of ▁the ▁five ▁and ▁ten ▁ ø re ▁co ins . ▁Its ▁ob verse ▁features ▁the ▁crown ▁of ▁King ▁Christian ▁V ▁of ▁Den mark . ▁The ▁coin ▁is ▁composed ▁of ▁a ▁bronze ▁of ▁ 9 7 % ▁co pper , ▁ 2 . 5 % ▁z inc ▁and ▁ 0 . 5 % ▁tin . ▁As ▁of ▁January ▁ 2 0 1 8 , ▁ 5 0 ▁ ø re ▁is ▁around ▁ 8 ▁US ▁c ents . ▁ ▁References ▁ ▁Category : Co ins ▁of ▁Den mark ▁Category : Num ism at ics ▁Category : F if ty - cent ▁co ins <0x0A> </s> ▁Roger ▁Mas ▁i ▁Sol é ▁( born ▁ 1 9 7 5 ▁in ▁Sol son a , ▁L le ida ) ▁is ▁a ▁Spanish ▁Catal an ▁S inger – song writer . ▁ ▁Biography ▁Roger ▁Mas ▁was ▁born ▁in ▁