I think this is the picture everybody needs to look at to solve the Zenith-in-Italy connection...
Some dealer named "...ndellini" (Andellini?) was obviously selling enough Zenith sets that he bothered to print "Zenith - TV - Color" on a label.
What's the story on that? Zenith's were built in Chicago, and I've
heard that a lot of Italians settled there, some more famous than others.