Egypt 1936 (Dec. 24) airmail Cover Cairo to Calcutta,  label bi-lingual French Arabic "Par Avion",  4 commemorative postage stamps of the Anglo-Egyptian Treaty August 26th 1936,  5,  15 (x2),  and 20 Mills.  (Mi. 220 - 222; SG. 245 -247 ; Yt. 184 - 186) all tied by Cairo 24. Dec. 1936.