Collection of stamps cards and covers illustrating the development of international air post 1870-1950 / amassed by Miss Winifred Penn-Gaskell. 89: Lecture script. The Beginnings of Air Mail / by Miss Winifred Penn-Gaskell, nd. [1939]. Ms, [14pp]. c31x21cm. Timed for 57 minutes with introductions. Given in Sidmouth. Setting out her creed for collecting: ... "Posterity will acknowledge that aero philately by its inception did a great work for the documentation of flying ... we lag far behind the contemporary portrayal of balloon flight with its 18th century prints ... no great artist was inspired to commemorate these early planes and pilots ... Aerophilately has stepped into the breach ..."