Watch List notes:

Italian States, Stato Pontificio (Papal States). Sixtus IV BI Quattrino. Viterbo mint, 1471-1484. Pier Paolo della Zecca, mintmaster. SIXTVS P P IIII, della Rovere coat-of arms surmounted by crossed keys and crown / SANTVS ✿ ✿ PETRVS, St. Peter, nimbate, standing facing, holding upright key and book; lion walking to left at feet, palm behind. MIR 481/1; Muntoni 64; Berman 481. 1.15g, 19mm, 2h.

Very Fine; symbol on rev. unclear.