ETH-BIB-Max Cosyns bei Prof. Auguste Piccards Ballonkugel-Inlandflüge-...
Picryl description: Public domain image of an early aircraft, balloon, airship, free to use, no copyright restrictions. Walter Mittelholzer was a Swiss aviation pioneer and photographer. He was one of the firs... Mehr
ETH-BIB-Max Cosyns bei Prof. Auguste Piccards Ballonkugel-Inlandflüge-...
Walter Mittelholzer was a Swiss aviation pioneer and photographer. He was one of the first pilots to fly in the Swiss Alps and made many flights over the mountains, taking photographs that helped to map and sur... Mehr
ETH-BIB-Max Cosyns bei Prof. Auguste Piccards Ballonkugel-Inlandflüge-...
Walter Mittelholzer was a Swiss aviation pioneer and photographer. He was one of the first pilots to fly in the Swiss Alps and made many flights over the mountains, taking photographs that helped to map and sur... Mehr
ETH-BIB-Prof. Auguste Piccards Ballonkugel in Dübendorf-Inlandflüge-LB...
Walter Mittelholzer was a Swiss aviation pioneer and photographer. He was one of the first pilots to fly in the Swiss Alps and made many flights over the mountains, taking photographs that helped to map and sur... Mehr
ETH-BIB-Prof. Auguste Piccards Ballonkugel in Dübendorf-Inlandflüge-LB...
Walter Mittelholzer was a Swiss aviation pioneer and photographer. He was one of the first pilots to fly in the Swiss Alps and made many flights over the mountains, taking photographs that helped to map and sur... Mehr
ETH-BIB-Prof. Auguste Piccards Ballonkugel in Dübendorf-Inlandflüge-LB...
Walter Mittelholzer was a Swiss aviation pioneer and photographer. He was one of the first pilots to fly in the Swiss Alps and made many flights over the mountains, taking photographs that helped to map and sur... Mehr
ETH-BIB-Prof. Auguste Piccards Ballonkugel in Dübendorf-Inlandflüge-LB...
Picryl description: Public domain image of an airport, free to use, no copyright restrictions. Walter Mittelholzer was a Swiss aviation pioneer and photographer. He was one of the first pilots to fly in the Sw... Mehr
ETH-BIB-Prof. Auguste Piccards Ballonkugel-Inlandflüge-LBS MH05-92-01
Walter Mittelholzer was a Swiss aviation pioneer and photographer. He was one of the first pilots to fly in the Swiss Alps and made many flights over the mountains, taking photographs that helped to map and sur... Mehr