Watch List notes:

Crown 1677 7 over 6 with closely spaced 77, the underlying 6 therefore more to the right of the final 7. No 'Boar's Head' flaw, VICESIMO NONO edge. Inspection of our auction archive reveals all previous examples of this overdate, and indeed the unaltered date coins, have been normally spaced 77 type, thus proving more than one die was altered to facilitate the striking of this type. VG or better, Rare

Estimate: 75-175 GBP