Bidspirit auction | 1954 (10 July) Airmail cover
1954 (10 July) Airmail cover with Conquest of Everest complete set of 2v with Experimental P.O. cancelled to Germany from Raipur
1954 (10 July) Airmail cover with Conquest of Everest complete set of 2v with Experimental P.O. cancelled to Germany from Raipur