Unknown Ducato d'oro of Francesco IV. Gonzaga in SINCONA Auction 54

Unknown Ducato d'oro of Francesco IV. Gonzaga in SINCONA Auction 54

In the upcoming spring auction of SINCONA AG a so far unknown coin type of Francesco IV. Gonzaga will be auctioned. It is a Ducato d'oro 1612 from the Mantua Mint, which has never been mentioned in the extensive literature on Italian numismatics to this day. Lorenzo Bellesia, a specialist in Italian numismatics from San Marino, studied the piece and reported on it in detail in the journal Panorama Numismatico (issue 03/2019).

Calendar of Events

May 1-3, 2020, Royal Park Hotel, Tokyo (JPN)

Tokyo International Coin Convention (T.I.C.C.)

May 1, 2020, Hannover Congress Center, Hannover (GER)

111. Hannover Coin Show

May 11-13, 2020, Zurich

SINCONA Auctions Spring 2020

August 4-8, 2020, Pittsburgh, PA (USA)

World's Fair of Money 2020

August 28-30, 2020, Mira Hotel Hong Kong (HK)

9th Hong Kong Coin Show (HKCS)

October 19-22, 2020, Zurich

SINCONA Auctions Fall 2020

November 29, 2020, Hannover Congress Center, Hannover (GER)

112. Hannover Coin Show



We hold two internationally renowned auctions twice a year in Zurich, offering our customers a large selection of coins, banknotes, medals, etc. We encourage your participation, whether as buyer or consignor.


We constantly seek coins, medals and notes for our customers. We shall gladly accept individual pieces, as well as entire collections.


We produce professional and market-aligned estimates upon request. Needless to say, such estimates always represent specific purchase offers.

Coin Lending

Are you temporarily low on cash albeit unwilling to part with your treasures? Learn more about coin lending!

Precious Metals Trading

Would you like to buy or sell gold, silver or other precious metals as bars or coins at the best price?

Safe Deposit Boxes

Store your valuables and important documents in a safe, discreet, and insurable manner in the safe-deposit boxes of SINCONA TRADING AG, accessible at all times at a prime location in Zurich.