Dear Castiglione,
the Italian Ni 10s arrived in Italy as two-seater for the fighter role, then they were changed in one-seater to save weight. The poor rate of climbing, even in such configuration, soon forced the Italian to withdraw the aircraft from the front and use them as trainers.
The plane kept in Museo della Guerra, in Rovereto, Italy, was recently restored, as you can see there:
http://www.gmtmodellismo.it/public/m...12390f160a184e
Happy landings
Paolo