Watch List notes:

The Royal Bank of Scotland plc, £20 (2), 25 March 1987, consecutive serial numbers A/1 000099/ 000100 purple on multi-coloured underprint, Lord Ilay at right, R.Maiden signature, reverse purple, Brodick Castle(PMS RB88, Banknote Yearbook SC862), paper clip indent at right, good extremely fine (2).

Estimate: £150 - £200