George VI 1937 proof Crown PF65 CAMEO Coronation issue

George VI (1936-52),proof Crown, 1937, struck in 0.500 silver, bare head left, tiny HP below truncation for engraver T. Humphrey Paget, Latin legend and toothed border surrounding, GEORGIVS VI D: G: BR: OMN: REX, rev.struck en medaille, crowned quartered shield of arms, lion and unicorn supporters, K and G between legs respectively for engraver Kruger Gray, banner motto below DIEU ET MON DROIT, denomination and date below, Latin legend and toothed border surrounding, FID: DEF: : IND: IMP, edge milled (Bull 4021; L&S 3; ESC 393; S.4079).Practically as struck, has been slabbed and graded by NGC as PF65 CAMEO.