Watch List notes:

The Commercial Bank of Scotland Limited, obverse and reverse uniface proofs/colour trials for a £1, ND (c.1907), black on multicolour underprint, frieze at low centre, bank buildings at left and right and top centre, value at centre and each corner, reverse brown, bank emblem at centre, perforated SPECIMEN, (PMS CO52b for type, Banknote Yearbook SC401 for type), ink annotation in top margin, mounting traces on reverse, good extremely fine, rare (2).

Estimate: £150 - £200