[ Autographs ] HYMAN G. RICKOVER (1900 - 1986) American admiral responsible for the construction of the "Nuclear Navy", starting withthe submarine Nautilus. T.L.S. on the verso of a postcard picturing the U.S.S. Bainbridge, [n.p., n.d., a. 1961], sending a first-day cover honoring the Bainbridge (included), canceled at Quincy, Mass., Apr. 15, 1961. Very good.