Watch List notes:

Papal States, Bologna. Paul V. A.D. 1605-1621. AE half bolognino (27.7 mm, 8.39 g, 3 h). Struck 1612. BONOIA DOC[ET], arms of Bologna / MEZZO BOLOGNINO // MDCXII ( = 1612 ), protome of lion left atop cartouche containing date in Roman numerals. Berman 1600. aFine, flan somwhat irregular, some legend weak-to-off, even, dark brown original patina.

It was Paul V who censured the humanist astronomer Galileo Galilei in 1616 for espousing Copernican theory.