1 Ducat - Hieronymus Sauli

Caffa — modern Feodosia in Crimea — was the Genoese republic's most lucrative Black Sea trading post, handling the bulk of overland Silk Road goods arriving from Central Asia. The city minted its own gold ducats in conscious imitation of Venetian issues to ease commercial exchange with merchants who trusted that format implicitly. Hieronymus Sauli served as Genoese administrator of the colony during a period when Ottoman pressure was already squeezing Genoese influence throughout the eastern Mediterranean — Caffa itself fell to Mehmed II's forces in 1475, ending Genoese control permanently.

Any example struck after 1475 would have been produced under Ottoman suzerainty, a detail that complicates attribution within the 1436–1499 range.