George VI 1937 proof Florin PF65 Coronation issue

George VI (1936-52),proof Florin, 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 emblematic rose, K and G either side of stem for engraver Kruger Gray, thistle over G to left, shamrock over R to right, denomination and date below, Latin legend and toothed border surrounding, FID: DEF: : IND: IMP, edge milled (Bull 4077; ESC 957; S.4081).Practically as struck, has been slabbed and graded by NGC as PF65.