Northern IrelandNorthern Bank Limited complete Fourth issue SPECIMEN set Torrens signature (6) comprising 5 Pounds dated 24th August 1990 serial number A0000000 red SPECIMEN overprint diagonally on obverse and reverse, blue and multicolour. 10 Pounds dated 24th August 1990 serial number B0000000 red SPECIMEN overprint diagonally on obverse and reverse, red and brown on multicolour underprint. 20 Pounds dated 24th August 1990 serial number C0000000 red SPECIMEN overprint diagonally on obverse and reverse, purple-brown, red and multicolour. 50 Pounds dated 1st November 1990 serial number D0000000 red SPECIMEN overprint diagonally on obverse and reverse, bluish green black and multicolour. 100 Pounds dated 1st November 1990 serial number E0000000 red SPECIMEN overprint diagonally on obverse and reverse, lilac black blue and multicolour. The takeover of Northern Bank by National Australia Bank on 30th October 1987 required a change of design to remove the Midland Bank motif therefore new designs were prepared and were printed and engraved by Thomas De La Rue & Co. London. The notes feature prominent men whose inventions in Northern Ireland contributed to the progress of various forms of transport. The new designs standarized the reverse of the notes with a dish antenna at left, a stylized N at centre and a computer at right. All about UNC - UNC. Scarce and seldom seen as a complete set. Pick 193s to 197s (Blake-Callaway NR 112, 113, 115, 117 and 118)
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