Victoria (1837-1901), Proof Threepence, 1893, by T. Brock and Benedetto Pistrucci, veiled head left, rev. St George and Dragon, edge milled, 1.41g, 12h (Spink 3942; ESC 3445 [2105]; Stratos 254), rich dark tone overlying brilliant fields, practically mint state, only 1,312 struck