Watch List notes:

Stato Pontificio, Anonime Pontificie (attribuite ad Adriano VI, 1522-1523), Mezzo Giulio, Piacenza, 1522-1523; AR (g 2,09; mm 22; h 3); FIRMVM PLAC PRAESIDIVM, decussed keys, above tiara, Rv. PLAC ROMANOR COLONIA, wolf standing l.; above, star, below, three pellets. CNI 14; Muntoni 3.
Of high rarity, cabinet tone, about extremely fine.