Great Britain. Proof Halfcrown, 1911. S.4011; ESC-758; KM-818.1. George V. Obverse portrait by McKennal. Reverse, crowned shield of arms in royal garter. An exceptionally pretty mint state example of this Halfcrown struck for inclusion in the boxed (silver and gold) Proof Sets minted to celebrate the coronation of King George V. Iridescent blue toning both sides. NGC graded Proof 65. Estimated Value $450 - 500