A baler described with hand tying was made by Case. Luckily I was too young to work on it but my uncle had one. I have no idea if a tool like that was used. I am however going to question it, I feel it would be difficult at best to feed a wire thru the small hole while bouncing across a field but I have been wrong before. Some of the wires had a loop on one end and the other end was twisted to tye the bale. Another design had a loop with a slot formed by the wire the same width as the wire. The other end had a ball which was slipped thru the hole and would pull back into the slot as the bale expanded leaving the chamber, this however did not allow the crew to control the length of the bale unless they were tyed by twisting. I do remember trying to feed these bales, both styles of wire, as they were heavy and I had to break them open in the mow and carry a few slabs at a time. As to auto tye wire, both Moline and JD built them. On a JD the plunger ran sideways and a large 90 degree chute was necessary to turn the bale towards the wagon. This also made the bales look like bananas. Vern