Watch List notes:

Italian States, Florence. Cosimo I de Medici, Duke of the Republic. 1537-1557. BI Quattrino (17.1 mm, .64 g, 10 h). COS M[ED] F DVX II, crowned arms with six roundels / ·S· IOAN NE [...] ·, Saint John the Baptist as a baby walking left carrying long cross. MIR 140. Fine, some weakly struck areas, medium toning. Rare.

Ex Berman (1970).