Watch List notes:

(x) Northern Bank Limited, Northern Ireland, consecutive pair of £20 (2), 2 March 1987, serial number F1738979/173980, purple on multicolour underprint, allegorical scenes of agriculture, shipbuilding and weaving, Roberts signature, (Pick 190c, PMI NR103, Banknote Yearbook NI.632c), in PMG holder number 64EPQ Choice Uncirculated (2).

Estimate: £120 - £160