Watch List notes:

ITALY. Stato Pontificio. Pio VI, 1775-1799. 2 Zecchini 1786, Bologna. Obv. PIVS VI - PONT M. Coat of arms. Rev. S PETRON B-ON - PROT 1786. St. Petronius on clouds, coat of arms of the papal legate Giovanni Andrea Archetti and of the City of Bologna below. Muntoni 174; KM 308; Fr. 392. AU. 6.84 g. - AU
Ex. Christie's Milan live auction 2532, 29-30 November 2011, lot 633.