National Bank of Egypt, printers archival specimen 50 piastres, 10 March 1917, serial number P/87 000001- P/87 100000, brown on multicolour underprint, Sphinx at left, Rowlatt signature (Pick 11s, Hanafy M2 for type), ink annotation 6.2.20 in top margin, in PCGS holder 65 OPQ Gem Unc, rare and attractive