Watch List notes:

Bank of England, D H F Somerset, £1 (30), ND (1981), prefixes DX29 (17), DY (2) and the last prefix DY21 (3), green and multicolour, portrait Queen Elizabeth II at right, seated Britannia at low left, reverse, Sir Isaac Newton, (EPM B341), DY21 uncirculated, DY20, DX29 about uncirculated to uncirculated (30).

Estimate: £100 - £150