80-G-465389:  MacMillan Arctic Expedition, 1925.  A peculiarly shaped iceberg and its parent in the glacier in the back ground, the Greenland coast just north of Cape York.  This expedition was noted for the first productive use of aircraft in an Arctic exploration by Americans.  The three aircraft were NA-1, NA-2, and NA-3.  (2015/10/27).
<a rel="nofollow" class="external text" href="https://www.flickr.com/people/127906254@N06">National Museum of the U.S. Navy</a>
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