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Keywords from Image Description:
roald amundsen lincoln ellsworth nylesund nylesund svalbard polferd hjalmar riiserlarsen riiserlarsen feucht amundsenellsworth amundsenellsworth polar flight aviation aircraft airplane seaplane flying boat flyingboat dornier flugzeugwerke dornierflugzeugwerke dornier dornier do wal dornierdojwal dornier do dornierdoj do wal dojwal