Watch List notes:

Commercial Bank of Scotland Limited, colour trial £1, Edinburgh, 1 December 1927, brown, pale orange and red, classical frieze top centre, John Pitcairn low centre, value at centre, in red low left and right and at each corner, Thomson and Roberts signatures low left and right, reverse green, bank building at centre, value at left and right,, (Pick S331act, PMS CO61act, Banknote Yearbook SC404act), hole punched, blue WATERLOW overprint, in PMG holder 64 choice uncirculated and rare.

Estimate: £280 - £320