Watch List notes:

Commercial Bank of Sydney, proof £20 on card, Sydney, 18-, orange and white with blue value in each margin and at centre, value at centre in orange, bank building at centre, maiden top left and right, Britannia and Abundance, (Vort-Ronald type 3), A most attractive and colourful W. & A.K.Johnston of Edinburgh engraving, uncirculated and extremely rare.

Estimate: £800 - £1,000