Farmall Cub Specs, Price, Review: Three major series of the original Farmall Cub were built: the International Cub Tractor until 1975 (sn 248124), the Farmall Cub Tractor until 1964 (sn 224703), and the new International Cub Tractor until the end of production in 1979. The Farmall Cub tractor was the smallest tractor manufactured by International Harvester (IH) under either … [Read more...] about Farmall Cub Serial Numbers, History, Price, Specs & Review