old LIONEL trains (box2, #6)

This one is #3472 AUTOMATIC REFRIGERATED MILK CAR. With LIONEL LINES logos and BUILT BY LIONEL, its sides are also marked NEW 3-47. (I don't know if that is its actual age) Both sets of side doors and one top hatch hinge open revealing inner mechanisms that seem to include several individual little silver 'milk cans' with a freightman unloading them from inside. Like the rest in the box with it, I haven't had the opportunity to learn any more about it yet.