Current auctions

Calendar of Events

May 1, 2017, Hannover (D)

105. Coin Fair Hannover

May 16-18, 2017, Zurich

SINCONA Auctions

October 23-25, 2017, Zurich

SINCONA Auctions

October 28-29, 2017, Zurich (CH)

46th International Coin Show Zurich

May 15-17, 2018, Zurich

SINCONA Auctions



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 (as coins or bars) or sell gold, silver or other precious metals 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.