That is a L.E.M.S, the simulator used for training fully restored, and is how the L.E.M.s looked. I believe it is on exhibit at the Virginia Air and Space Center. I think the Smithsonian has an unused one. There were very few unused ones, most ended up lost in space or crashing back on the Moon, some we just have no idea, the return vehicle part of the L.E.M., that is. .