This image was acquired from
flickr. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
Keywords from Image Description:
Lot LCUSZ German Military Activities World War I. Tethered German observation balloon possibly used in the Battle of Champagne though which battle is not specified on obverse of photograph. Photograph by F.J.M. Reshe Munchen Germany. Lot LCUSZ German Military Activities World War I. Tethered German observation balloon