This is a 1:16 scale model of the Polaris A-1, America's first submarine-launched ballistic missile. It carried one nuclear warhead, had a range of approximately 1,400 miles, and was deployed during the 1960s. The missile was replaced by the Polaris A-2 which also carried a single nuclear warhead but had a longer range. Lockheed Missiles and Space made this model and donated it to NASM in 1961.
This object is not on display at the National Air and Space Museum. It is either on loan or in storage.