This is a model of unknown scale of the U.S. Air Force MB-1 air-to-air missile, also known as the Genie. Built by Douglas Aircraft, the MB-1 was an unguided missile that carried a nuclear warhead and had a range of about 6 miles. It was deployed on Air Force fighters in the 1960s.
The model's manufacturer is unknown. John and Cynthia Heyde donated it to the museum.
This object is not on display at the National Air and Space Museum. It is either on loan or in storage.