S
About
SINCONA Swiss International Coin Auction AG is a premier coin dealer located in Zurich specializing in numismatics and rare coin auctions held twice yearly in spring and autumn. This established international dealer offers expert services for collectors and investors looking to buy and sell coins, with a focus on high-quality numismatic pieces. Based at Limmatquai 112, SINCONA combines professional auction expertise with personalized service for serious coin collectors worldwide.