East African Currency Board, a printers archival uniface black and white die proof of a 5/-, 15 December 1921, George V at low right, value at centre and low left, reverse lion at centre flanked by values, value also at each corner, mounted on gridded and watermarked paper, each side has printers marks/security features hand drawn in red ink (Pick 13 for type, TBB B209a), in PCGS Currency holder 30 VERY FINE, Paper Thins, Pinholes, very rare