A Papal copper coin of the value of five Baiocci, struck by Pius VI (1775-1798). There are varieties for Ascoli, Civita Vecchia, Fermo, Gubbio, Macerata, Perugia, Tivoli, Montalto, Matelica, Viterbo, San Severino, Ronciglione, etc. The half was called the Sampietrino, both coins receiving their designations from the figures represented thereon.
Source: Frey's Dictionary (American Journal of Numismatics, Vol. 50, 1916)