(x) East African Currency Board, a uniface obverse and reverse, plate colour die proof for 100 shillings, no date (series of 1964), purple, sailboat on Lake Victoria, the reverse shows a coffee plant with berries and other flowers, similar to the issued design, 'Plate Colour No. 10 Purple' and '21.2.64', printed,(Pick 48pr), in PCGS holder 62 NEW, previously mounted and extremely rare (1 pair).
Estimate: £700 - £1000