This is an unfinished casting kit for a Wall Wizard engine. The engine was designed and produced by Elmer Wall, who offered this casting kit to eager model engineers. The set of castings are on display along with a finished Wall Wizard engine that was loaned to the Miniature Engineering Craftsmanship Museum as part of the engine collection of Paul and Paula Knapp. Also included is a copy of Mechanix Illustrated featuring the engine in an article from August, 1941.