Bononenus Public Deposited
The name given to the mezzo Grosso struck at Bologna by Pope Eugenius IV from 1431 to 1438. It has on the reverse the figure of St. Petronius seat- ed, holding in his hand the cathedral of the city. The inscription reads S. PETRONIV. DE BONONIA.
- Frey's Dictionary (American Journal of Numismatics, Vol. 50, 1916)