To promote its Silvercup bread, the Detroit-based Gordon Baking Co. debuted this custom-built rocket hauled by a tractor-trailer at the Michigan State Fair in 1954. Nearly 100,000 attendees toured the 35-by-8-foot spacecraft, christened the Silver Moon, where they could take the pilot's seat and pull back on a throttle to hear the roaring sounds of a jet engine. At tour's end, children received a mini loaf of Silvercup, "The Official Bread of All Spacemen." The rocket appeared at the fair annually until 1962, when show organizers replaced it with a replica of astronaut John Glenn's Mercury capsule, the Friendship 7.