428-GX-USN 1163442:  A UH-1D Iroquois helicopter of Antarctic Air Development Squadron Six, VXE-6, stands outside the entrance of an ice cave in the edge of the Mount Erebus Ice Tongue.  Photographed by PH2R. Beaudet, December 7, 1974.  Official U.S. Navy Photograph, now in the collections of the National Archives. (2016/01/12). Note: Photographed from reference card only.
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