U.S. Navy Bathyscaphe Trieste, 1959. Ship Repair Facility, Guam. Jacques Piccard and Earnest Vigil load iron shot, which is used for ballast of the vessel, onboard the bathyscaph Trieste. Photographed November 12, 1959. (U.S. Navy Photograph now in the collections of the National Archives. Note, photographed from reference card only. (2016/02/17).