50 Piastres

The National Bank of Egypt was a private institution under British financial influence throughout this note's entire issuing period — the Governor signing these notes was a British appointee, not an Egyptian one. Cook, Nixon, and Leith-Ross were all British nationals serving as Governor, a situation that persisted until nationalization in 1951. The signature varieties therefore map almost exactly onto the careers of successive British-appointed administrators, making them as much a political record as a numismatic one.

Bradbury Wilkinson printed the series in London, though the notes circulated through wartime Egypt when the country was effectively under Allied military occupation and the Nile Delta saw significant troop movements. Nixon's two signature variants — distinguished by script size — are among the more unusual subdivisions in the series, likely reflecting a mid-tenure plate change rather than any administrative shift.