Workers pouring Bronze at the CVC Lunkenheimer plant in Cincinnati.
This is a new, old stock, original Lunkenheimer fuel manifold like the one installed on the original Spirit of St. Louis. This is the complete valving system as installed to operate the entire fuel system, which included all five tanks and the ability to transfer fuel to different locations and then return fuel from the engine-driven fuel pump. The valve at the top center of the Lunkenheimer is the primer fuel shut-off and the one at the bottom is the fuel drain. Lunkenheimer also manufactured the hand pump engine primer installed in the Spirit’s instrument panel.