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Keywords from Image Description:
balchen and engine balchenandengine SDASM.CATALOG Balchen SDASM.TITLE Balchen and Engine SDASM.ADDITIONAL INFORMATION Bernt Balchen working on engine at Duneden New Zealand Ellsworth Antarctic Expedition. SDASM.COLLECTION Bernt Balchen Collection SDASM.TAGS Balchen and Engine PUBLIC COMMONS.SOURCE INSTITUTION San Diego Air and Space