Bank of England, D.H.F. Somerset, £50 (3), ND (1981), prefix A01 001701, 780129 and 844487, olive green on multicolour, portrait Queen Elizabeth II at right, phoenix rising from flames at centre, seated Britannia low left, reverse, Sir Christopher Wren, (EPM B352), choice almost uncirculated with only minor counting marks (3).
Estimate: £280 - £340