Medal: Francesco II Gonzaga, model ca. 1480 or 1484 (cast 16th or 17th century), Bronze, Diam. 6.9 cm, wt. 116.28 g., Medals, Bartolommeo Melioli (Italian, Mantua, 1448?1514), The obverse bears a portrait of Francesco II Gonzaga (1466?1519), fourth m