Italy
Papal States. Callistus III gold Ducat ND (1455-1458) XF40 NGC, Rome mint, Fr-7, MIR-348/2, B-347. 3.43gm. + CALISTVS • – • PP • TERTIVS •, Papal tiara and crossed keys above arms, all within quadrilobe / MODICE ' FIDEI • QVARE • DVBITATIS, St. Peter in a boat, holding rudder and cross. A handsome type which is well struck for the grade, and with a light rose-gold tone.
From the Allen Moretti Swiss Collection
https://coins.ha.com/itm/italy/italy-papal-states-callistus-iii-gold-ducat-nd-1455-1458-xf40-ngc-/a/3076-31877.s?type=CoinArchives3076
HID02906262019
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Estimate: 1000-1200 USD