International Harvester was the name of the company. Built many products besides tractors, including freezers, refrigerators, stoves washing machines, etc. Farmall was their tractor division. Then Case bought out International and became Case IH. The Farmall division was sold separately and those tractors are being built today by another company. Don't recall that company parent name right off but first saw the new Farmall Tractors at a large county fair a few years ago. I think the dealers are kind of few and far between as most are staying with the Case IH brand, which probably don't want another red tractor mixed in.
A great read for the benefit of the group.