Just a short post to say that I really appreciate the "Group Effort" to solve this puzzle.
Everyone is trying very hard and sharing their results with the rest of the gang so we can hopefully get a correct identification.
I just spent another hour on Google.it with no good information coming out of it, even using the search term "veicoli pubblicitari" in several different ways. That should have worked, but it did not.
One thought, it may well be a Fiat 1100 BLR, at least that is how the vehicle was originally registered, but it is so heavily modified, and, so heavy from the looks of it, I wonder if the original vehicle purchased by Tre Teste may have had it's registration changed to another chassis later on when the coachbuilder made this creation. Just a thought......
Bill