Watch List notes:

Italy, Mantua. Guglielmo. 1550-1587. AE quattrino (16.1 mm, 1.69 g, 7 h). Gonzaga family issue. · MARO · - ·VIRGILIVS, laureate head (of Virgil?) left / E P O, letters across field, ornament beneath. MIR 405; Ekl 172. aVF, several dents, black/brown patina.