Compagnia Nazionale Aeronautica
Compagnia Nazionale Aeronautica was a manufacturer of aircraft and aircraft engines established in Italy in 1920 by Count Giovanni Bonmartini. Together with a group of World War I veteran pilots, he operated a flying school in Rome from a field that would eventually be developed into Littorio Airport.
Source: Wikipedia — Compagnia Nazionale Aeronautica (CC BY-SA 4.0)