http://www.wellesnet.com/turin-museum-orson-welles/
"We found this archive just by chance. I was working on my upcoming book about Too Much Johnson and talking to Professor Franco Prono of the University of Turin," said Studer, a PhD student at Udine University. "Professor Prono told me, 'Did you know at the National Cinema Museum in Turin that we have an Orson Welles archive?' And I said, 'What? Are you kidding me?' Even (noted Welles scholar) Ciro Giorgini did not know anything about Turin."
One of the main things the Turin archive has that UM archive doesn't is the script for "Soldier, Soldier", written in the late 1960s.