British and Irish Banknotes

Commercial Bank of Scotland Limited, a group of progressive proofs showing various stages of underprint for £1 (3), £5 (9), £20 (9), £100 (9), some printed on similar paper to the issued notes, some with pencil annotations, balance uncirculated, a very interesting group (30 proofs)
PMS CO 56p, Pick S323p £600-£800