 There are, however, at least two other replicas of "Rocket" in the US, both built by Robert Stephenson and Hawthorns in 1929; one is at the Henry Ford Museum in the Metro Detroit suburb of Dearborn, Michigan, the other at the Museum of Science and Industry, Chicago.The earliest full-size replica of "Rocket" seems to have been one depicted on a London & North Western Railway postcard (therefore pre-1923).A cut-away static replica (see photo above) was built in 1935 and displayed for many years next to the original at London's Science Museum, and in 1979 a further, working replica "Rocket" was built by Locomotion Enterprises in the Springwell workshops at the Bowes Railway for the 150th anniversary celebrations.