Coin of Piso Small 318×320 Medium 637×640 Large 1018×1024 Download Tiff Original 2387×2400 | (779.6 KB) Description Coin of Piso with bust on front and wreath on back. Front. Keywords coin of piso, currency, Italy, piso, Roman, Rome Galleries Roman Coins Source: James B. Greenough, Cæsar's Gallic War (Boston: Ginn & Company, 1899) 10