Hitch
1- Looks to be from under a pick up, probably a class III
2- It is low slung and probably from under a sedan of some type. (class III)
3- Appears to be a 21" drop from a 2 " solid iron Draw bar with diagonal braces up to the frame. Probably for a 5 ton rated truck with high frame rail and tall wheels.
4-Tow bar- light duty
Make and offer.