This example from the 1970s has a tiny decal showing what workshop
(“Torresini” at Torpado in Padova) that actually built these bikes.
The Classic Rendezvous “ARCHIVE #2” is a Google Group. Once you join, you can not post to the group forum but you can do searches for research information.
If you would like to join the Classic Rendezvous “ARCHIVE #2 please email Guy Apple at guy.apple00@gmail.com