Lordship of Chios, gold ducat of Filippo Maria Visconti (1421-1436 AD), Duke of Milan, imitating the design of a Venetian sequin. 3.5g, Obv: St. Peter gives a banner to the kneeling duke, legend .D. MEDOILANI / .S. PETRVS / DVX. Rev: Christ in mandorla, legend .SI. T. XPE. DA Q T - RE ISTE. DVC. Very fine, Very scarce.