National Bank of Egypt, archival printers specimen proof £50, 15 November 1919, serial number N/2 050001 - 100000, purple on multicolour underprint, Mameluke tombs at centre flanked by value in ornate tablets, camel train low centre, bank title top centre, unsigned, reverse, purple on light orange and green underprint, guilloche patterns and value (Pick 15sp, Hanafy M2.1, TBB B113as), perforated CANCELLED, printers annotations 073685 and 6.2.20 in PMG holder 55 About Uncirculated, previously mounted, very rare, and beautiful high denomination