Watch List notes:

Commercial Bank of Scotland Limited, proof/colour trial £1, 1 July 1886, black on yellow underprint, ornate frieze surrounded by thistles at top centre, bank emblem at low centre, reverse brown, bank building at centre, two cancellation holes in counterfoil, (PMS CO47cts, Douglas 31 for type), about uncirculated, rare.

Estimate: £300 - £350