This is a 1:60 scale model of the Snark, the first U.S. intercontinental guided missile. It had a nuclear warhead, an air-breathing engine, two solid-fuel boosters to assist in take-off, a cruising speed of close to Mach 1, and a range of over 6,300 miles. The missile was deployed with the U.S. Air Force from 1957-1961, at which time the increasing numbers of the larger and more accurate Atlas and Titan intercontinental ballistic missiles rendered the Snark obsolete. This model was built by Northrop and apparently given to Dr. Zinn, fiscal officer of the House of Representatives. Dr. Zinn in turn donated it to NASM in 1966.