National Bank of Liberia, obverse die proof for $5, dated 26 July 1988, black print, only top layer of design, and an issued example of the note, 6 April 1991, serial number AG 5179095, uncirculated (2 pieces)
TBB B202, Pick 20 £80-£120

This is the work of Brian Moore, who was employed many of the great British printing firms over a career spanning half a century. This proofs was for his sections of the note only, and is completely unique.