80-G-706979:  Harold Weisbrod, Navy diver, sets world record for “Wet Tank” dive at the U.S. Naval Gun Factory, Washington, D.C.   Immediately after the removal of his heavy deep sea diving suit Weisbrod entered the dry recompression chamber.  Here Wesley Singleton, Chief Metalsmith and Diver, First Class, opens the valves which increase the pressure within the chamber.   Weisbrod remained in the chamber breathing oxygen and under a pressure approximating a depth of forty feet of water for about an hour and a half.  This was the final phase of the dive except for a brief examination by the Experimental Diving Unit’s Medical Officer, Captain C.E. VanDerHue, released 18 March 1949.  U.S. Navy Photograph, now in the collections of the National Archives.  (2016/06/14).
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