I have a coin that I need to Identify. It is fashioned after the San Marino 20 Lire 1931 thru 1938 (KM #Pn4) with a few differences. It has no date, there is no crown on the reverse, and no L.20, in place of the L.20 are three stars. But other than these three differences they look alike. It appears to be silver and is about the same size, about 35.5mm diameter. Any help would be appreciated.
