Air Mail cover 1911-31, the selection of flown covers or cards, including Internal 1911 Coronation Aerial Post, Windsor-London printing envelope in purple, London-Windsor printing cards or envelopes (4, two being unused), External with a few Irish flights or acceptances, 1931 (4 April) London-Australia flight XU5 (crashed at Singapore) and (12 April) Calcutta-Port Darwin flight XU5, both signed by Kingsford Smith, etc., mostly good to fine. (14)