It is not in my KM-Catalog - Standard Catalog of Unusual World Coins, 4th Ed. 2006 and not in the normal one so there is a big chance that it does not have a KM-Number.
An entry on colnect had km63.1 but if it is a real catalog reference it is not from KM.
So you have to make up one of your own or leave it out for the time being.
That's "token" has got the value of two lire inside the Milan exposion and inside the house of revolution in Rome.
3 kind of coniage: silver each one with number, trial strike in Al and the this one in gilded Cu.
The coniage was made of Jhonson Industry of Milan.
This in the only official Italian "token-coin" with the name of Benito Mussolini.