Stutz Inlet Manifold for Model M.It has been modified for a downdraft carbuerettor. It can be repaired, or cut down further and modified for side draft carbuerttors. (See last image as an example of another inlent manifold cut down and ready for modification for side draft carbuerettors).
Broken down. Not working. Could bake a working engine from the 2. Found in grandfathers / uncles garage along with large amount of other de Dion parts..