A number of AR powered aircraft exist in Italian Museums to this day including Alfa's own museum which displays one record breaking aircraft and an variety of motors and Alfa props.
the following Museums also have a wide range of AR powered and other aircraft on display.
Italian Airforce Museum ,Vigna di Valle, Roma
Museo Aeronautico caproni di Taledo ,Trento
Museo Nazionale Della Scienza e Della Tecnica, Milano,
The caproni Museum certainly has its own website and the Airforce museum should be accessed via the Italian Air Ministry site.
A number of years ago the old Alfa Museum site had a 360 degree QuickTime
virtual tour of the museum . This now seems to have disappeared into the ether but perhaps a way could be found to add thisto the Abb site