Undersea launch of a ballistic missile from a Soviet nuclear-powered submarine, 1973 (colour litho)

Undersea launch of a ballistic missile from a Soviet nuclear-powered submarine, 1973. Text on the reverse reads: "The nuclear powered submarine launches its missiles while under water, which gives it great maneuverability and practically makes it invulnerable. One submarine, armed with nuclear rockets, can in a short period of time achieve results equal to some of World War 2's largest military operations. Nuclear missile carriers, together with our mighty strategic rocket forces, are the means for holding back the aggressor. They are the shield covering the world socialist system.".