George III 1818 Half-Sovereign, die flawed 8

George III (1760-1820), gold Half-Sovereign, 1818, with spur of metal emerging from top right of 8, engraved by Benedetto Pistrucci, laureate head right, date below, legend GEORGIVS III DEI GRATIA raised rim both sides,rev.crowned shield of arms, dot below, REX FID: DEF: BRITANNIARUM, weight 3.94g (Hill 401; Bull EGC 930; S.3786).Once cleaned, both punches for the 8's in the date line displaying die flaws or breaks, probably not an overdate as no part of 7 evident in the loops of 8, an academic example of a rare date, bold fine.