It's listed in the UWC catalogue as KMX #308. Note that this coin wasn't issued by the actual remnant of the
Sovereign Military Order of Malta, the group of knights which used to own Malta and now only own a couple of buildings in Rome.
Here are the coins issued by the "real" SMOM, which are always denominated in the traditional Maltese units of currency, namely the grani, soldo and scudo.
Rather, this coin was issued by some individuals taking advantage of a coin-issuing entity with limited international recognition.
This set from the same series has a COA in Italian and English, the two languages which also appear on the coin, but the certificate doesn't specify the mint. It does however, name "Arnaldo Petrucci di Vacone e di Siena" as the authorizer. Googling this name brings up
this site which describes the activities of this particular group; scroll down to section 10A. Since most of their coins turn up in America before they're sighted in Europe, it's reasonable to presume that their mint is an American private mint.
Here is an older thread on both the "real" and "bogus" Order of Malta coins.
Don't say "infinitely" when you mean "very"; otherwise, you'll have no word left when you want to talk about something really infinite. - C. S. Lewis