Walter Mittelholzer - Eine Schweizer Pioniergeschichte
- विधा: Documentary
- स्टुडियो:
- कीवर्ड: africa, photography, switzerland, ethiopia, aviation, pioneer, airline, flight attendant, 1920s, 1930s, swissair, mittelholzer
- जात: Henry Wydler, Joe Bischofberger, Hugo Ruoss, Andreas Eppenberger, Robert Naville
