Watch List notes:

Italy, Stato Pontificio, Sisto V (1585-1590), Bianco, Bologna, 1585-1590; AR (g 4,55; mm 28; h 6); SIXTVS V PONT MAX, bust r., Rv. BONONIA MATER STVDIORVM, lion prancing l., holding flag. Muntoni 98; Berman 1362.
Rare, cabinet tone, about extremely fine.