Image BYB ref. One Pound notes NI.601b 1 Pound 6. 5.1929Prefix N-I/B VF+ €112.10 NI.601b 1 Pound 1. 8.1929Prefix N-I/F aUNC €295.00 NI.602a 1 Pound 1. 7.1970Prefix C UNC €41.30 NI.602as 1 Pound 1. 7.1970Prefix C0000000 UNC €12.98 Specimen - Training note NI.602c 1 Pound 1. 8.1978Prefix C UNC €29.50 Five Pound notes NI.613c 5 Pounds 1.11.1943Prefix N-I/T aUNC €259.60 NI.613c 5 Pounds 1.11.1943Prefix N-I/T EF/aUNC €224.20 NI.613c 5 Pounds 1.11.1943Prefix N-I/T EF €188.80 NI.616s 5 Pounds 25.8.1988Prefix A0000000 UNC €165.20 Specimen note NI.617b 5 Pounds 1. 1.2000Prefix Y2K UNC €49.56 NI.617 are polymer notes, the last £5 notes issued by the northern Bank. Ten Pound notes NI.623g 10 Pounds 1.10.1968Prefix N-I/00 UNC €389.40 NI.624a 10 Pounds 1. 7.1970Prefix E F+/VF €64.90 NI.624a 10 Pounds 1. 7.1970Prefix E VF €59.00 Small ink annotation on the front NI.624b 10 Pounds 1.10.1971Prefix E aEF €106.20 NI.624b is a scarce variety with only 100,000 notes printed NI.624c 10 Pounds 1. 1.1975Prefix E UNC €147.50 NI.624c 10 Pounds 1. 1.1976Prefix E UNC €147.50 NI.624d 10 Pounds 1. 4.1982Prefix E aUNC €123.90 NI.624d 10 Pounds 1. 4.1982Prefix E EF €94.40 NI.624e 10 Pounds 2. 3.1987Prefix E aUNC €100.30 NI.624e 10 Pounds 2. 3.1987Prefix E EF €59.00 NI.625a 10 Pounds 24. 8.1990Prefix B aUNC €94.40 NI.625as 10 Pounds 24.8.1988Prefix B0000000 UNC €188.80 Specimen note NI.626a 10 Pounds 24 .2.1997Prefix BB VF+ €28.32 NI.629 10 Pounds 9.11.2008Prefix GG UNC €47.20 NI.629 10 Pounds 30.11.2011Prefix GH UNC €47.20 Last prefix NI.629 10 Pounds 9.11.2008Prefix YY UNC €70.80 Replacement note NI.629 10 Pounds 9.11.2008Prefix YY VF+ €33.04 Replacement note Twenty Pound notes NI.632a 20 Pounds 1. 7.1970Prefix F UNC €578.20 NI.633a 20 Pounds 24. 8.1993Prefix C aU/UNC €206.50 NI.633as 20 Pounds 24.8.1989Prefix C0000000 UNC €236.00 Specimen note NI.634a 20 Pounds 24. 2.1997Prefix CA UNC €118.00 First prefix NI.634a 20 Pounds 24. 2.1997Prefix CB VF+ €33.04 Small 2mm tear in the top margin NI.636 20 Pounds 6.11.2006Prefix HG UNC €44.84 NI.636 20 Pounds 6.11.2006Prefix HH UNC €44.84 NI.636 20 Pounds 6.11.2006Prefix YY EF/aUNC €82.60 Replacement note NI.636 20 Pounds 6.11.2006Prefix YY VF+ €59.00 Replacement note NI.637 20 Pounds 15. 4.2009Prefix HH UNC €44.84 NI.637 20 Pounds 15. 4.2009Prefix YY EF/aUNC €82.60 Replacement note NI.637 20 Pounds 12. 5.2011Prefix HJ UNC €59.00 Last prefix before Danske Bank Fifty Pound notes NI.643c 50 Pounds 1. 3.1981Prefix G VF+ €283.20 NI.646 50 Pounds 19. 1.2005Prefix YY UNC €283.20 Replacement note One Hundred Pound notes NI.651 100 Pounds 2. 6.1919Prefix No. 5840 EF/aUNC €2,124.00 NI.653a 100 Pounds 1. 7.1970Prefix H VF+ €460.20 NI.656 100 Pounds 19. 1.2005Prefix YY EF €330.40 Replacement note Northern Bank Ltd SPECIMEN SET: NI.Specimen set 5,10, 20, 50, &100 1988, 1989, 1990Prefix A, B, C, D, E. UNC €1,132.80 NI.616s, NI.625as, NI.633as, NI.644s & NI.654S.