COLLECTIBLE: PALESTINE, 1927, Apr. 4, First Imperial Airways, Cairo to Karachi. Palestine 5m horizontal pair and 6m, tied by Jerusalem Apr. 4, 1927 double-circle datestamps on cover to Karachi, small label with manuscript "per 1st through Air Mail to India" at top left, violet "Air Mail" boxed handstamp, Baghdad transit backstamp, small hole at left, still Very Fine, this cover was to join this inaugural Imperial Airways service at the Gaza stop after taking off from Cairo on Apr. 6, this cover made it as far as Baghdad and then went surface mail to Pakistan as the Persian authorities did not give permission to cross their air space on the Apr. 6 and 20th flights, only three covers are addressed to Karachi on this flight and the first despatch of air mail from Palestine. Ex Jain With 2014 R.P.S. Certificate