Bank of Rhodesia and Nyasaland, colour trial £10, ND (1956), serial number Z/1 000000, green on multicolour underprint, Elizabeth II at right, arms at top centre, lion reclining low left, value at other corners, reverse brown, elephants at centre, value at corners, red SPECIMEN overprint and single cancellation hole (Pick 23ct, TBB B104t), one perforation, in PMG holder, paper clip mark at top left, attractive and very rare