This is a model of unknown scale of the Advanced Terrier, a U.S. Navy ship-launched anti-aircraft missile built by General Dynamics. It had a conventional warhead, a solid-fuel motor, a maximum speed of about Mach 2.5, a range of over 21 miles, and a ceiling of 65,000 feet. First deployed in the early 1960s, the missile continued in service into the 1970s. John and Cynthia Heyde donated this model to NASM on an unknown date.
This object is on display in James S. McDonnell Space Hangar at the Steven F. Udvar-Hazy Center in Chantilly, VA.