Sikorsky S-39B amphibian.  This example, SN 904 NC 803W, first flew on July 31, 1930, and is the oldest existing Sikorsky aircraft.  It was originally based in Hartford and flown by Charles W. Deeds, mainly for pleasure.  During WWII, it was flown by the Civil Air Patrol out of Rehoboth, Delaware, basically on air-sea rescues.  Once such mission resulted in the pilot Hugh Sharp and his observer Ed Edwards becoming the first civilians ever to be awarded the military%u2019s Air Medal.  It also earned Sikorsky the prestigious Collier Trophy.  904 closed out its flying days as a bush plane in Alaska.  It was damaged in a forced landing in 1957 and remained where it fell until 1963 when it was recovered and brought to the museum by Phil Redden of Anchorage.
<a rel="nofollow" class="external text" href="https://www.flickr.com/people/15775662@N00">Kevin King</a> from Pensacola, FL, US of A
CC BY 2.0
<a rel="nofollow" class="external text" href="https://www.flickr.com/photos/15775662@N00/3345160921/">New England Air Museum, Sikorsky S-39B amphibian</a>