The tractor he is referring is not a 430, but rather a predecessor to the 430. The 400B series was produced from 1958 to 1959 and had a COM drive. The "tin work" (hood, grills, fenders, etc) were similar to the early 430s, but there were some differences. The 411B was the row crop version of the 400B series and the 410B was the utility version. There were 2790 411Bs made and 868 410Bs. The 300B series was the same tractor with a dry clutch.