I did check the run-out grooves. My SIAE copy has the same information that you quote and the other one has the standard UK EMI matrix stamps which support my theory that it is a UK issue exported to Italy.
Not easy to say, no chance to check the run grooves? Here one that could confirm your theory, here one that could confirm mine and here one ... in the middle. And again this one for you! Too much confusion, I give up :)
The variation with the Manufactured in Italy printing looks like a UK issue with just the labels being different. It even comes in the UK sleeve.
Maybe copies were pressed in the UK and exported to Italy before United Artists (Italy) decided to press local issues in a sleeve unique to that market?