Thanks Hellen, yes, isn't Italy a rich and fertile field for young and unbelievably talented riders. I have been interested in Carlo Ubbiali for a number of years and the purpose of the question was to see if anyone out there who saw him compete at the TT could add anything to the picture.
He came from Bergamo and started racing at 20 in 1949, rode Mondial for 3 years and won his first World Championship for them in 1951. Then untill 1960 rode MV. He was only slight of stature and this suited the 125 and 250 machines that he exclusively rode. Aparently he was not served up all his victories on a plate as there was stern opposition from NSU and MZ. Ubbiali was from all accounts a thinking rider and was sensitive to his machinery. Unfortunatly I have never seen him on film and hope someone could describe his riding style. I treasure a photo of him standing before the start of a race with and umbrella in his hand (no dolly birds then) and cloth taped over his mouth, eyeing the weather seriously and wearing a battered MV helmet. How times have changed!