Watch List notes:

The Royal Bank of Scotland plc., £10 (10), 28 January 1992, serial number B70 379011-020 brown and multicoloured, Lord Ilay at right, Mathewson signature, also £20 (5), 28 January 1992, serial numbers A/40 057266-270, purple and multicoloured, Lord Ilay at right, Mathewson signature(PMS RB103a, 105b, Banknote Yearbook SC853a, 863b), uncirculated and two consecutive runs (15).

Estimate: £300 - £350