Collection of literature on the Trident undersea nuclear weapons system and the keel laying of the USS Ohio SSBN 726 nuclear powered trident submarine consists of a 7 p. February 1975 issue of All hands featuring "The Trident story," a 14 p. February 1975 report on the "Trident" submarine, missile, and logistics support, a 9 p. program "Keel laying of the trident submarine, USS Ohio SSBN726, April 10, 1976, Groton Connecticut" at General Dynamics' Electric Boat Division, and five cancelled cachets in two different designs commemorating the USS Ohio keel laying.