I'm attempting to identify what I believe to be a casting machine from the 60s or 70s. As you can see in the picture, it was made by Highland Park Manufacturing, Model IVC, with a serial number IVC1781354. Also looking for a manual if possible.
Highland Park Manufacturing doesn't exist anymore but I've contacted a few companies affiliated with them including Highland Park Lapidary and CigarBoxRock to see if I can find more information. I've also searched through all of the old HP Manufacturing catalogs I could find to no avail. They were heavily involved in lapidary tools but I could not find any information about their involvement in casting equipment, or any references to this unit in general.
Any help would be greatly appreciated. I will see if I can get more pictures in the meantime.