East African Currency Board, 20 shillings, Nairobi, 1 February 1956, serial number G89 47233, orange brown, Elizabeth II at top right, value at top left, at centre and at each corner, signatures of Beresford-Stooke, Fisher, Galworthy and Mathieson, reverse orange-brown, lion at centre (Pick 35, TBB B225d), in PCGS holder 66 PPQ GEM NEW and rare in this grade