British and Irish Banknotes

Royal Bank of Scotland PLC, specimen £1 (3), 1 October 1983, 1 May 1986 and 17 December 1986, zero serial numbers, prefixes C/58, D/33 and D/68, Winter or Maiden signatures, black or red SPECIMEN overprints, first with single cancellation hole, uncirculated and scarce (3 notes)
PMS RB 80bs, cs, ds £150-£200