Originally Posted by crawlspace
Thanks for continuing to dig, Matt. I wonder where that guy found the tail logo detail for that decal. 3-view? You found a 3-view? Where did you find it?
He probably made it up from the photo above. And the "3-view" was (thanks to my faulty memory) just a single view in the Google book, and upon closer inspection its a "Gabardini" but the other perspective drawings appear to be the Chiribiri.
I like the mystery surrounding this project!
EDIT: Did a little more digging in Italian (see attached for more images of the earlier Chiribiri types).