Australia 1929 // 1931, Two early flight covers to Sir David Ezra in Calcutta India.

• 1929 (Jul 11) Sydney to  Calcutta Airmail cover bearing mixed franking of  3d (Mi:89, SG 115) vertical pair plus  1½ d (Mi: 71XCI,  SG. 96a)  arrival cds on reverse.
• April 1931 (Apr. 22) Imperial Airways, First official flight British Commonwealth Australia - England, air letter bearing mixed franking of  2d, 3d, 6d (SG 121-123); 1½ d , 3d. (SG 117-118)& 1½ d (SG 105) and 3d. (SG115) All stamps tied by 'Toorak VIC / April 22 1931', On reverse  rubber hand stamp in violet commemorating the 'FIRST OFFICIAL AIR MAIL FLIGHT' from Melbourne to London. and May 4 1931 arrival cds.