Aeroposta

Around 1929 Aeroposta was started as an airmail service in Argentina by the well-known French aviators Jean Mermoz and Antoine de Saint-Exupery. In those early days commercial aviation depended on the personal efforts of individuals, and these two pilots, obsessed with all things aeronautical were responsible for buying the gasoline and fuelling their aircraft - itself not an easy task.
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n. airmail, mail which is sent by airplane