• (n.) A small copper coin formerly current in the Roman States, worth about a cent and a half.
Ba·joc'co noun [ Italian , from bajo brown, bay, from its color.] A small copper coin formerly current in the Roman States, worth about a cent and a half. 
The bajocco or baiocco was a small silver or copper coin used in the Papal States from 1592 to 1867 and valued at about a halfpenny.