 Then, in the last decade of the 19th century, he dedicated himself to the construction of mandolins and guitars with his younger brother Cesare in their own violin making workshop in via dei Servi 54.From the 1900s to 1930, Oreste had a workshop at Vico di Ponticello.He began making stringed instruments at a relatively late age; the construction of violins before 1915 was sporadic.