Air Mail cover 1936 (29 Sep.) Imperal Airways 'Athena' crash covers from London addressed to Calcutta, Penang (with information slip) and Sydney. Nierinck 360929. (3)

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Air Mail cover 1936 (29 Sep.) Imperal Airways 'Athena' crash covers from London addressed to Calcutta, Penang (with information slip) and Sydney. Nierinck 360929. (3)