This is a plaque accompanying a model of the Regulus I, a U.S. Navy surface-to-surface missile carried on and launched from the decks of submarines. It had a nuclear warhead, a solid-fuel engine, one booster for assist in take-off, a range of 400 miles, and a guidance system using radio commands from the submarine. The missile was deployed on a limited number of submarines during the late 1950s and early 1960s. The plaque commemorates the 1000th flight of the missile from the U.S.S. Barbero in August 1960. It sits on a wood base. Chance Vought Aircraft made the model and the plaque and donated them to the Museum.
This object is not on display at the National Air and Space Museum. It is either on loan or in storage.