Watch List notes:

ITALY. Stato Pontificio. Pio VI, 1775-1799. ½ Doppia 1788 GP, Bologna. Obv. PIVS VI PON-T MAX. Lily flower. Rev. BON DOCET / G. P. Coat of arms of legate Giovanni Andrea Archetti and of the City of Bologna. Muntoni 193b; KM 281; Fr. 387. AU. 2.70 g. - XF-AU ligth cleaning
Ex. Christie's Milan live auction 2532, 29-30 November 2011, lot 645.