Watch List notes:

FRANKISH GREECE AND THE ARCHIPELAGO:ACHAIA. UNCERTAIN 14th AND 15th CENTURY AEGEAN AREA ISSUES. Ducat in imitation of a Venetian ducat. St. Mark hands the ducal banner to the doge. Rv. Chr.ist in mandorla. Blundered legends on both sides. 3.49 g. Schlumb. -, Lunardi CS9 var.
Extremely fine

Ex Münzen- und Medaillenhandlung Brandt & Sonntag, Stuttgart, Liste 7, 1990, lot 911.