At the age of 12 Bruno Rossati began working eleven hour days.
"Now, approaching 91, I find myself reminiscing about my youth, still riding my motorcycle every day.
Letter re Ladetto
A Brief History of the Italian Marque
Antonio Dionisi built motorcycles in Milan with 125cc two-stroke engines of his own design from 1926 to about 1927 or 1928. Another source thinks 1924-27.
These were also branded Dionisi motorcycles, it is believed.
Sources: motodilombardia.it, et al.