20 inch gauge amusement park train built in the late 1950s by the same company that built the original rides for Disneyland, and was ridden by Elvis

installed in Memphis Fairgrounds Amusement Park when new, but squeezed out of the fairgrounds in the early 1970s when the Libertyland Amusement Park was built.

 The train was refurbished and moved to the Memphis Zoo in 1975

http://www.billsgarage.com/modeltstomustangs.html