A Brief History of the Marque
Subsidiary of Aero-Caproni which produced motorcycles with NSU engines of 98cc to 247cc with pressed metal frames. The name was taken from one of the aircraft the the parent company produced during WWII, the Caproni Vizzola which came in variations including F.5 and F.6.
The last of the Vizola models, the Cavimax, was based on the NSU Max.
More on the NSU Caproni at the Schouwer Archive
Sources: Tragatsch, Henshaw et al