Royal Bank of Scotland PLC, reverse die proofs for £1, £10, £20 and £100, all 1981, freshly engraved for the new PLC issue of 1982, all with Bradbury Wilkinson imprint below lower margin, on large format paper with crop marks, about uncirculated, attractive and rare (4 notes)
PMS RB 80a, 82a, 83, 84 £200-£260