Victoria 1857 Sovereign, triangle like 7 in date due to flaw, unusual

Victoria (1837-1901),gold Sovereign, 1857, with flawed figure 7 like a triangle, second young filleted head left, W.W. incuse on truncation for engraver William Wyon, date below, Latin legend and toothed border surrounding, VICTORIA DEI GRATIA,rev.crowned quartered shield of arms, laurel wreath surrounding, emblems below, Latin legend and toothed border surrounding, BRITANNIARUM REGINA FID: DEF: (Bentley 998; Marsh 40; S.3852D).Toned, surface marks, hairline scratch on neck, some raised die flaws in field and on 7 of date, otherwise good fine, a scarce die variety.