Western Bank of Scotland, a progressive proof of £100, Glasgow, 1836, black and white, portrait William IV flanked by unicorn and lion at top centre, value top left and right and centre, illustrations of Commerce and Britannia at left and right respectively, Lizars engraving, (PMS WE10 for type), in PMG holder 64 NET choice uncirculated, a few features missing from the this proof that is present in other similar proofs, e.g. missing boarder, missing underprint, only outline is present on the values, bank name and location, unusual, rare