Bissolo Publique Deposited
A base silver coin of the Duchy of Milan issued by Giovanni Maria Vis- conti (1402-1412), and retained in the coinage of Estore and Giancarlo Visconti. It had a value of one eighteenth of the Soldo.
The obverse of this piece usually bears a floriated cross or a bust of St. Ambrosius; the reverse has a crowned serpent or viper (biscia), the arms of the Visconti family, from which design the coin obtains its name.
- Frey's Dictionary (American Journal of Numismatics, Vol. 50, 1916)