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
The firm produced mopeds in the 1950s and possibly into the 1960s.
Founded 1898 in Bagnolo by Nogarole Rocca and Giovanni Rinaldi. In 1923 Rinaldi's son Leopoldo moved the factory to Via Vittorio Veneto, N.16 Cinisello, Milano, adopting the brand names Leri (Leopoldo Rinaldi) and Mirella for the bicycles.
The business moved to Muggio in 1958. It remains operational - leribiciclette.it
Sources: lot-art.com, woiweb.com, advertising, et al