East African Currency Board, a uniface obverse and reverse plate colour die proof for 10 shillings, no date (series of 1964), green, sailboat on Lake Victoria, the reverse shows a coffee plant with berries and other flowers, similar to the issued design, Plate Colour Green No. 17 and 6.1.64, printed, (Pick 46pr), in PCGS holders 55 and 63, previously mounted and extremely rare (1 pair)
