Current auctions

SINCONA Auction 63 (1/3)

06/08/2020 09:00
Gold and Silver Coins and Medals

SINCONA Auction 63 (2/3)

06/08/2020 13:00
Gold and Silver Coins and Medals

SINCONA Auction 63 (3/3)

06/09/2020 09:00
Gold and Silver Coins and Medals

SINCONA Bullion Auction

06/09/2020 13:00
Gold and Silver Bullion Coins and Bars

SINCONA Auction 64 (1/3)

06/09/2020 15:00
Swiss Coins and Medals

SINCONA Auction 64 (2/3)

06/10/2020 09:00
Swiss Coins and Medals

SINCONA Auction 64 (3/3)

06/10/2020 13:00
Swiss Coins and Medals


Important Information (COVID-19)

Due to the Federal Council Ordinance on Measures to Combat Coronavirus of 16.3.2020, our business will remain closed to the public until 19.4.2020.

However, we will still be available during normal business hours by telephone (+41442151090) and by e-mail ( to answer any questions or concerns you may have about numismatics.

The SINCONA Auctions 63-64 have been postponed and will take place from June 8 to 10, 2020!

We regret the circumstances very much, but we are committed to offering you our best service despite these adverse circumstances. Thank you for your understanding and good health!

Calendar of Events

April 23-25, 2020, Chicago, IL (USA)

81. CSNS Convention (canceled!)

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

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

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

111. Hannover Coin Show

June 8-10, 2020, Zurich

SINCONA Auctions 63-64

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.