[ Autograph ] Hyman G. Rickover Fine content T.L.S. 1p. 4to., 'At Sea Gulf of Mexico', Sep. 25, 1967 Rickover writes a senator describing the shake-down cruise of the nuclear submarine USS Haddock: "...The first Haddock... served overseas during World War I... the second Haddock made 13 war patrols and sank eight Japanese ships... won 11 battle stars... the new Haddock's primary wartime mission is to destroy enemy submarines... detect and attack surface or submerged targets at considerable distances... a most effective antisubmarine weapon...' Very good.