Keywords: USS Thresher underway April 1961.jpg en Photo NH 97549 USS Thresher SSN-593 Port broadside view taken while the submarine was underway From the collections of the NHHC http //www history navy mil/photos/sh-usn/usnsh-t/ssn593 htm J L Snell - official U S Navy Photograph 1961-04-30 PD-USGov-Military-Navy USS Thresher SSN-593 April 1961 |