1916 On His Majesty's Service cover to Alexandria, with oval "Royal Flying Crops/No.21 Reserve Squadron" handstamp at left, supported by Base Army Post Office "Z" at right, arrival pmk on back, part of backflap missing, otherwise fine (Image)

Est.$250

1919 On His Majesty's Service cover to Alexandria, with boxed "Aerial Post E.E.F.", with double circle "Certified Official Army & Navy Canteen Board" in violet, Base Army Post Office 8 Apr, 1919 arrival pmk on back, fine (Image)

Est.$500

1919 On His Majesty's Service cover registered to E.E.F., with Army Post Office S.Z.10 and APO SZ10 registry label, 24 Jan 1919 arrival Base Army Post Office "K" on back, light filing fold and minor backflap faults, fine otherwise (Image)

Est.$250

1920 On His Majesty's Service cover, endorsed "Aerial Mail Urgent", addressed to Base Pay Officer Royal Air Force Cairo, with return address of "Flight Lieut. Base Officer, Royal Air Force, Mesopotamia", handstamped "M", filing folds, scarce usage (Image)

Est.$250

1924 5m stationery entire envelope additionally franked with pair of 5m Fouad, sent from the American Mission ibn Minia, with San Stefano departure cds, with 8c U.S. Air Post added on arrival in New York for Aerial Mail to Chicago, cover roughly opened at right, with some toning on reverse, fine and scarce combination (Image)

Est.$500

1926 cover flown from Cairo to USA, with 5m Fouad block of four canceled "Shepheard's Hotel Cairo", with 8c U.S. Air Mail added on arrival in Chicago, interesting combination, fine, with Agricultural Exhibition Cairo slogan and Chicago arrival pmks on back (Image)

Est.$250