From what I am able to gather, there is/are a lot of manufacturers using the Fiat machine, I bought a 1255 Oliver 4WD which is made by Fiat, but use my Kubota M5500DT parts manuals for ordering parts... they are nearly identical, even the sheet metal. Oddly, the Oliver is a 1971 and the Kubota is a 1981, but there is little difference even tho' there is 10 difference in age. Of course there are differences, but many things interchange. At the time I bought the 1255, there was a Long tractor which also was nearly identical. A relative in Norway has a Fiat which also (obviously) was a virtual twin to all that I have mentioned. Well, I doubt this info helps much, but I thought I'd add this to the confusion.
                            Cal