This is a 1:48 scale model of the Juno II, which was the successor to the Juno I and was utilized by the National Aeronautics and Space Administration (NASA) beginning in late 1958 to launch satellites and probes. A four-stage rocket, the Juno II consisted of an extended liquid-fuel Army Jupiter intermediate-range ballistic missile as the first stage and three upper stages powered by scaled-down solid-fuel Army Sergeant missile engines. NASA utilized the Juno II in ten launches from 1958-1961, of which only three were successful. Thereafter, the cheaper and more reliable Scout replaced the Juno II as the primary launch vehicle for a wide range of small orbital payloads and experiments. NASA's Marshall Space Flight Center made this model and transferred it to NASM in 1972.
This object is on display in James S. McDonnell Space Hangar at the Steven F. Udvar-Hazy Center in Chantilly, VA.