George IV 1821 Half-Sovereign MS62, one year only issue

George IV (1820-30),gold Half-Sovereign, 1821, first laureate head left, B.P. for Benedetto Pistrucci below neck, legend and toothed border surrounding, GEORGIUS IIII D: G: BRITANNIAR: REX F:D:,rev.first crowned quartered shield of arms, with a crowned escutcheon of the Arms of Hanover, emblems surrounding, ANNO to left, 1821 to right, weight 4.00g (Marsh 403 R5; S.3802).Lightly toned, light surface marks and nicks, has been slabbed and graded by NGC as MS62 and very rare one year only type.