George IV 1823 Half-Sovereign, first head, second reverse, rare date

George IV (1820-30), gold Half-Sovereign, 1823, 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. second crowned quartered shield of arms, with a crowned escutcheon of the Arms of Hanover, emblems below, ANNO to left, 1823 to right, weight 3.99g (Marsh 404 R2; S.3802). Lightly toned, some tiny marks and nicks, extremely fine and rare.