Bidspirit auction | 1929 (28 Mar) Airmail Flight
1929 (28 Mar) Airmail Flight Cover franked with QV, KE & KGV multiple stamps from The Calcutta Philatelic Mart, Calcutta to England with ”BY AIR” circular cachet with Bombay transit pmk
1929 (28 Mar) Airmail Flight Cover franked with QV, KE & KGV multiple stamps from The Calcutta Philatelic Mart, Calcutta to England with ”BY AIR” circular cachet with Bombay transit pmk