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Zeppelin LZ 5 at Goeppingen, Germany, 1909 (1933). A photograph from Zeppelin-Weltfahrten, Vom ersten Luftschiff 1899 bis zu den Fahrten des LZ127 Graf Zepplin 1932, Dresden, 1933. (Photo by The Print Collector/Print Collector/Getty Images)

Zeppelin LZ 5 at Goeppingen, Germany, 1909 (1933). A photograph from Zeppelin-Weltfahrten, Vom ersten Luftschiff 1899 bis zu den Fahrten des LZ127 Graf Zepplin 1932, Dresden, 1933. (Photo by The Print Collector/Print Collector/Getty Images)

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Zeppelin LZ 5 at Goeppingen, Germany, 1909 (1933). A photograph from Zeppelin-Weltfahrten, Vom ersten Luftschiff 1899 bis zu den Fahrten des LZ127 Graf Zepplin 1932, Dresden, 1933. (Photo by The Print Collector/Print Collector/Getty Images)

Zeppelin LZ 5 at Goeppingen, Germany, 1909 (1933). A photograph from Zeppelin-Weltfahrten, Vom ersten Luftschiff 1899 bis zu den Fahrten des LZ127 Graf Zepplin 1932, Dresden, 1933. (Photo by The Print Collector/Print Collector/Getty Images)

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Zeppelin LZ 127 'Graf Zeppelin' landing at Friedrichshafen, Germany, 1933. A photograph from Zeppelin-Weltfahrten, Vom ersten Luftschiff 1899 bis zu den Fahrten des LZ127 Graf Zeppelin 1932, Dresden, 1933. (Photo by The Print Collector/Print Collector/Getty Images)

Zeppelin LZ 127 'Graf Zeppelin' landing at Friedrichshafen, Germany, 1933. A photograph from Zeppelin-Weltfahrten, Vom ersten Luftschiff 1899 bis zu den Fahrten des LZ127 Graf Zeppelin 1932, Dresden, 1933. (Photo by The Print Collector/Print Collector/Getty Images)

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Zeppelin LZ1 in a floating hanger at Manzell, Friedrichshafen, Germany, 1900, (1933). The first Zeppelin, LZ1 was built and housed in this floating hangar on Lake Constance. It was designed to facilitate the launching of the airship as it could be aligned with the wind. A photograph from Zeppelin-Weltfahrten, Vom ersten Luftschiff 1899 bis zu den Fahrten des LZ127 Graf Zepplin 1932, Dresden, 1933. (Photo by The Print Collector/Print Collector/Getty Images)

Zeppelin LZ1 in a floating hanger at Manzell, Friedrichshafen, Germany, 1900, (1933). The first Zeppelin, LZ1 was built and housed in this floating hangar on Lake Constance. It was designed to facilitate the launching of the airship as it could be aligned with the wind. A photograph from Zeppelin-Weltfahrten, Vom ersten Luftschiff 1899 bis zu den Fahrten des LZ127 Graf Zepplin 1932, Dresden, 1933. (Photo by The Print Collector/Print Collector/Getty Images)

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Launch ceremony for Zeppelin LZ127 'Graf Zeppelin', Friedrichshafen, Germany, 9th July 1928 (1933). The 'Graf Zeppelin' was the most successful airship ever built. Between its first flight in 1928 and retirement in 1937, it made 590 flights and covered over a million miles. A photograph from Zeppelin-Weltfahrten, Vom ersten Luftschiff 1899 bis zu den Fahrten des LZ127 Graf Zepplin 1932, Dresden, 1933. (Photo by The Print Collector/Print Collector/Getty Images)

Launch ceremony for Zeppelin LZ127 'Graf Zeppelin', Friedrichshafen, Germany, 9th July 1928 (1933). The 'Graf Zeppelin' was the most successful airship ever built. Between its first flight in 1928 and retirement in 1937, it made 590 flights and covered over a million miles. A photograph from Zeppelin-Weltfahrten, Vom ersten Luftschiff 1899 bis zu den Fahrten des LZ127 Graf Zepplin 1932, Dresden, 1933. (Photo by The Print Collector/Print Collector/Getty Images)