80-G-68745:    Fire Fighters Schoo, Navy Yard, Mare Island, California, February 1943.  Demonstrating Navy Shallow Water Diving Hood #3.  This hood is used in conjunction with the under water demonstration of the Velocity Power Tools in a diving tank 12 ft in depth.   Official U.S. Navy Photograph, now in the collections of the National Archives.  (2016/08/09).
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