Southern Rhodesia, Central Africa Currency Board, £1, 10 September 1955, serial number B/311 006914, green, orange and lilac, Elizabeth II VI at right, arms at top centre, farmland at low left, value at corners, signatures of Greenfield and Grafftey-Smith, reverse, green, ibex at left, Great Zimbabwe ruins at centre (Pick 17, TBB B202a6), PCGS Currency 64 Very Choice New, rare in this grade