Found this in my Storage unit?? Looks like a throttle for ?
I'm only guessing but looks like transformer for the inexpensive sets 70's - 90's you didn't give a great pic of it. trying to determine if the black cord is a plug to plug into a outlet either way with the forward reverse switch it's for a DC train set of some type.
Oops the black wire looks like wire to attach to a lock on. No power in unit itself looks like a place to plug in a power source. No Lionel part # on it.