170915-N-SH284-017 KEYPORT, Wash. (September 15, 2017) Members of

Download this stock image: 170915-N-SH284-017 KEYPORT, Wash. (September 15, 2017) Members of the Bathyscaphe Trieste Alumni Association pose for a photo in front of the Trieste II, during their bi-annual reunion outside of the Naval Undersea Museum-Keyport. Trieste is the only manned submarine ever to explore the deepest part of the ocean, the Challenger Deep in the Marianas Trench. Trieste II, the first deep submergence vehicle built by the U.S. Navy, following its acquisition of the original Trieste bathyscaphe, is permanently on display outside of the museum. (U.S. Navy photo by Mass Communication Specialist 2nd Clas - MM95B6 from Alamy's library of millions of high resolution stock photos, illustrations and vectors.

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