National Bank of Egypt, consecutive prefix printers archival specimen 50 Piastres (2), 1957, serial number SZ/24 000001 - SZ/24 1000000 and SZ/25 000001 - SZ/25 100000, brown, mask of King Tutankhamuns mummy, reverse, Trajans Kiosk on the island of Philae at centre, (Pick 29s, TBB B129ds), perforated CANCELLED, ink date 36 in top margin, very slightly pressed, otherwise about uncirculated, rare (2 notes)