Watch List notes:

ITALY. Milano (Duchi). Giovanni Maria Visconti, 1402-1412. Grosso (Silver, 24 mm, 2.30 g, 7 h). + S AMBROSIVS MEDIOLAN St. Ambrose mitred, nimbate, seated facing, holding scourge and crozier. Rev. + • IOHANES• MARIA• DVX• MEDIOLANI 3C'• Crowned coiled serpent flanked by I-M. Biaggi 1484. MIR 134. Rare. Attractive old cabinet tone; fine details for type. Nearly very fine.
From an collection of a Swiss engineer formed from 1880s until 1926.