Last night I watched History Detectives on PBS and they were reseraching an old Airstream Trailer that was purporteed (erroneously) to be part of a grou[p of air stream trailers that vtravlled from south africa to egypt in 1959. (Capetown to cairo)
They showed pictures of the caravan in Ethiopia and showed Emperor Selassie visiting some of the caravan members in their Airstream trailers.
this is the inventor of the airstream visiting with the Emperor.