George V Specimen Matt Satin Finish 1924 Threepence of highest rarity

George V (1910-36), Matt Satin finish Proof silver Threepence, 1924, bare head left, B.M raised on truncation for engraver Betram MacKennal, legend and toothed border surrounding, GEORGIVS VII D. BRITT: OMN: REX F. D. IND: IMP:, rev. crowned mark of value within oak wreath, date either side of 3, weight 1.43g (Bull 3942; ESC -; Davies -; S.4026). Toned practically as struck and of the highest rarity, one of only two examples known to the cataloguer.