We are here for you!

All our numismatic services (estimations of coins and medals, direct sale of numismatic items, as well as consignments for auctions, etc.) will continue to be available to you.

However, we request that you contact us by telephone or in writing before your visit so that we can comply with the official regulations.

Please observe the generally known guidelines of the authorities as well as the measures taken on site and protect yourself and others.

Please contact us if you have coins, medals, banknotes, orders and decorations that you would like to sell or consign for auction but cannot visit us in Zurich. We will be happy to advise you by telephone or e-mail and can also visit you on site.

We look forward to seeing you and wish you all the best in good health.

Calendar of Events



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.