British and Irish Banknotes

Northern Bank Limited, £20, 20 October 1921 (1929), serial number A2263, Craig signature, large blue-black overprint on preceding issue, minor pencil graffiti on reverse, original paper, obverse nice and clean, though reverse more stained, about very fine, scarce, the best example the cataloguer has seen (only 5000 overprinted)
PMI NR 63, Pick 174 £300-£400