80-G-465348:  MacMillan Arctic Expedition, 1925.  Commander Richard E. Byrd, USN, expedition leaving dock at Boston Navy Yard.  “Old Ironsides” in the background. 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).
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