George V 1911 proof Five-Pounds PF61 Coronation issue

George V (1910-36), gold Proof Five Pounds, 1911, bare head left, with raised BM for Bertram Mackennal on truncation, legend and toothed border surrounding, GEORGIVS V DEI GRA: BRITT: OMN: REX F. D. IND: IMP:, rev. St George and dragon right, date in exergue, B.P. to upper right of exergue, edge milled (Hill F38; Schneider 665; L&S 17; WR 414; S.3994). Toned over underlying proof brilliance, with a number of hairlines, has been graded and slabbed by NGC as PF61.