I recently bought I IH 350 High Utility. The serial number is #8233, which if I looked correctly would make it a 1957 model, but I have seen on the internet that they only made them one year, 1958, how can that be? This site says they were made three years, what gives? This particular tractor is a 4 cylinder gas with torq amplifier that works, 13.6 X 38 rears, quick hitch three point set up, pto and quick hitch 3 bottom plow. No power steering. Did I read correct that there were only 1000 of these made? So whats that put the value at, it runs good, smokes a bit when first started, the tin work is not so good either are the chrome emblems on the side.