What hitch is this?

[855project 7]

Thanks for the warm welcome everyone! Great info, I think our tractor is pretty complete, except for some consumable parts but who knows what we will find the more we get apart. My nephew bought it at the Badger Steam and Gas show last year and the plan is to have it back at the show this year. Do any of you Wisconsin guys make it to that show? I know there are a couple displays with Wheel Horses there.