Thought it would make a damn nice shooter, it is not factory original and as 8b said, it's not for the serious collector.
It would need the correct stock and a proper refinish.

Someone put it together to sell(likely at a inflated price) to an unsuspecting person.

I bet it was really something when it was new. I notice that it has the "pat. pending" for the WS-1 choke stamped under the choke marking. Some have the actual pat. # 2054132 stamped there.

Ole Cowboy