Mint Errors - Mis-Strikes (2) Decimal Fifty Pences (2) 1978 struck on a rotated blank so the 'points' of the coin appear halfway along the straight edges of the flan, also struck slight off-centre A/UNC and lustrous, 1981 struck on a slightly rotated blank the 'points' of the design and flan do not align correctly results in a slightly thicker outer rim EF, both unusual

Estimate: GBP 50 - 100