Current auctions

SINCONA Auction 48

10/22/2018 09:30
Russian Coins and Medals

SINCONA Auction 49

10/23/2018 09:00
Machine-Struck Coins and Medals from Persia

SINCONA Auction 50

10/23/2018 09:30
SINCONA Jubilee Auction

SINCONA Auction 51 (1/3)

10/23/2018 13:30

SINCONA Gold-Auction

10/23/2018 16:30
Investment and Bullion Gold

SINCONA Auction 51 (2/3)

10/24/2018 09:30

SINCONA Auction 51 (3/3)

10/24/2018 13:30

SINCONA Auction 52

10/25/2018 09:30
Banknotes, Stocks and Bonds

SINCONA Auction 53

10/25/2018 13:30
The Collection of Ruedi Kunzmann, Part 2

Calendar of Events

October 22-25, 2018, Zurich

SINCONA Auctions Fall 2018

May 20-22, 2019, Zurich

SINCONA Auctions Spring 2019

October 21-23, 2019, Zurich

SINCONA Auctions Fall 2019



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.