Watch List notes:

ITALY. Stato Pontificio. Pio VI, 1775-1799. Doppia 1790 GP, Bologna. Obv. PIVS VI PONT - MAXIM. Lily flower. Rev. BON DOCET. Coat of arms of the papal legate Giovanni Andrea Archetti and of the City of Bologna. Muntoni 182a; KM 310; Fr. 246. AU. 5.44 g. - AU
Ex. Christie's Milan live auction 2532, 29-30 November 2011, lot 638.