Originally Posted by
FreddyV
When you take a look at the Bottecchia, the rear fork isn't welded to the seat tube as it is on yours:
LINK
Though on this picture the cabling is routed quite differently, but that may as well be because of the year this one was built.
I have quite some doubts about the Batavus as well, but that just may be because I'm Dutch and (as far as I know) "we" never used Italian standards.
Still... I'm going with Bertoni.
I'm thinking you're right about the Batavus.
I do recall though, seeing this exact lug arrangement and fork crown with lettering when we were guessing at what someone's Raseza project was.