Lot 1439 1929.NOV.4 First Day of Issue of Air Mail Stamps Flown Registered Cover, mailed from Park Street Calcutta to Leon Pont in London England, “by Imperial Airways / India – Great Britain”. The cover is franked with all five stamps issued on that day (the 2a was issued later), and has four different air mail labels plus a boxed “FIRST DAY / OF ISSUE OF / AIR MAIL STAMPS”, with Park Street registration label on back, plus an oval registration receiver dated NOV.20. The cover is signed on back by G. Grant (the designer of the stamps) and Stephen H. Smith. Small tear at top, into the 4a stamp and light edge wear at top, still very fine and desirable. From the Leon Victor Pont Collection of early India First Flight postal history. Estimate $2,500, sold for $2,400 plus 17% buyer’s premium.