This is a 1:40 scale model of the Juno II rocket. The Juno II 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 Army Sergeant solid-fuel 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. This model was made by the Army Ordnance Missile Command, which donated it to NASM in 1960.
This object is not on display at the National Air and Space Museum. It is either on loan or in storage.