Treasury Series, N.F. Warren-Fisher, 10 shillings, (3), ND (1922, 1927), prefixes, O/91, P/9, W/2, green and brown with... Bank of England, C.P. Mahon, a group of 10 shillings (5), ND (1928), prefixes, Z18, Y52, Y71, X12, W25, red, Britannia... Bank of England, C.P. Mahon, a group of £1 (6), ND (1928), prefixes, B36, C25, D67, E06, F73, G38, green, Britannia at... Bank of England, B.G. Catterns, a group of 10 shillings (9), ND (1930), prefixes, V74, U97, T13, S80, R66, O50, N60,...