Northern Ireland: set of 6 SPECIMEN notes Northern Bank Limited containing 1 Pound 1978 P. 187s, regular serial number, Specimen overprint (aUNC), 5 Pounds without date and signatures but regular serial numbers, Specimen overprint (XF+), 10 Pounds 1988 Specimen, zero serial numbers, (UNC), 20 Pounds w/o date and signatures, zero serial number, Specimen overprint (UNC), 50 Pounds w/o date and signatures, zero serial numbers, Specimen overprint (aUNC) and 100 Pounds 1980 with regular serial numbers and Specimen overprint (UNC), nice set. (6 pcs)