Italy, Papal State, Sede Vacante (1268-1271), Grosso Paparino di Viterbo
AR (g 1,68, mm 20; h 12)
+ BEΛTI PETRI, crossed keys of San Pietro, Rv. + PΛTRIMONIV (– above V), cross pattée; pellet at end of each bar. CNI XIV 4; Muntoni 1; Berman 162.
Very rare. Old cabinet tone and extremely fine.