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:
GXK Vostok Station Antarctica. Visitors to Vostok Station prepare to raise the United States and Russian flags over the station. Photographed by PH AC L.M. Mackay December . Official U.S. Navy Photograph now in the collections of the National Archives. Note Photographed from reference card only. GXK Vostok Station Antarctica.