Claim: Stellio Belletti worked for his father Antenore Belletti in his workshop where they built tubular steel aircraft fuselages for some important aeronautical companies in Milan, and toward the end of the 50's they began building motorcycle frames for racing competitions.
Evidence: At the end of World War II, at the age of 13, Stelio Belletti began working for his father Antenore Belletti in his workshop in via Giovanni Antonio Amadeo in the Ortica district of Milan, where they repaired and built tubular steel aircraft fuselages. They produced fuselages for some important aeronautical companies in Milan, working for the most part with the Società Italiana Ernesto Breda where his father, Antenore Belletti, apprenticed in the years before the war started. Towards the end of the 50s, while continuing to work in the aviation industry, the Belletti Workshop began to establish important relationships in the motorcycle racing industry, working closely with Eng. Lino Tonti, building motorcycle frames for racing competitions.