Air Mail cover 1914 (Jan.) Khartoum to Cairo return flight by Marc Pourpe, Sudan 5m. stationery envelope additionally bearing 2m. and 3m. and all cancelled by "SHELLAL-HALFA/T.P.O." c.d.s., showing a fine strike of the flight cachet in violet, addressed to Paris (17.1 arrival) and with Aswan (11.1) transit c.d.s.; a few imperfections including a small repair to upper part of envelope does not detract from the fine appearance of this very rare cover. Photo