Italian States, Stato Pontificio (Papal States). Gregory XIII BI Quattrino. Rome mint, 1572-1585. GRE • XIII • PONT • M •, oval coat-of-arms, surmounted by crossed keys and triple crown / • SAN • PETRVS • A • R •, St. Peter seated facing, nimbate, holding upright keys and book open on knees. MIR 1194/7; Muntoni -; Berman 1205. 0.64g, 18mm, 9h. Very Fine.