We are happy to assist you by telephone or in writing via email, WhatsApp or our contact form. You can find all our contact details here.

Our expertise, high-quality catalogues, international clientele and auction location in Zurich guarantee the successful and highly profitable sale of your numismatic items. We would be happy to tell you more about the added value of SINCONA in a personal meeting. We look forward to hearing from you.

We usually send out our catalogues at least four weeks before the respective auction date. Depending on the country, shipping may take a little longer.

Give us a call or send us a message – we will send you the latest catalogue as soon as possible.

The buyer's premium on the total hammer price is currently 20%.

Swiss value added tax (VAT) is 8.1% and is levied on all auction items. The exception to this are state-minted gold coins, which are not subject to Swiss VAT.

Specifically marked lots are subject to margin taxation in accordance with article 24a MWSTG (Swiss VAT Act) upon delivery in Switzerland. The buyer's premium for these lots is 23% and includes Swiss value added tax.

If you take the goods abroad or we send the items to you abroad, Swiss value added tax does not apply. Please note that taxes and costs may be incurred when importing into the country of destination.

The auction terms and conditions are available as a PDF file and are listed in the printed catalogues as well as in the information section of the online catalogue. If you have any questions about the terms and conditions, please do not hesitate to contact us.

Yes, you can submit your bids before the auction by letter, fax or email, or via our auction platform, numisbids.com or sixbid.com. 

We will confirm receipt of your bids immediately by email if we have your email address.

Just walk in – we look forward to welcoming you in person at Limmatquai 112 in 8001 Zurich. Please allow enough time to register and receive your bidder paddle.

Yes, all our auctions can also be attended online. This means you can participate in the auction in real time from anywhere in the world and bid against the bidders in the auction room. You will find access to the live systems at the respective auction.

We will send you your invoice by email shortly after the auction has ended. If your email address is not registered with us, you will receive the invoice by post.

We accept cash payments, transfers to our bank account, payments via PayPal (subject to PayPal fees) and cryptocurrencies BTC, ETH and USDT (payments with cryptocurrencies are limited in amount!).

Important: Please note that we cannot accept credit card payments.

We are happy to provide you with more information about payment methods.

You can collect auctioned items from our premises or, depending on their value, we can send them to you by post, express courier or secure transport. Please let us know your preferred option when you place your bid.

We insure all shipments. Please let us know if you do not require insurance cover.

Shipping costs vary depending on the destination country. However, you will only pay the price charged to us by the transport company for shipping. To optimise shipping costs, we do not send smaller lots as parcels, but as registered letters.

The insurance costs amount to 0.5% of the total of the hammer price and buyer's premium.

Costs and taxes may be incurred when importing goods into your country of destination – please check with your national customs authorities. As the sender, SINCONA has no influence whatsoever on any duties that may be levied.

Normally, purchases made by private individuals with delivery addresses in Germany, France, Italy and Luxembourg are processed by SINCONA Deutschland GmbH (see also ‘Processing auction purchases via SINCONA Deutschland GmbH’). This company handles the import and customs clearance of goods into the EU on your behalf. This means that the delivery is made within the EU and you do not have to worry about import and customs costs.

Please let us know if you would prefer to collect your goods in person from our premises in Zurich or if you would prefer them to be shipped directly from Switzerland.

As a member of the International Association of Professional Numismatists (IAPN) and the Association of Swiss Professional Numismatists (VSBN), we guarantee the authenticity of the auctioned items and will accept the return of any items proven to be counterfeit without question.

In general, all purchases made by private individuals with delivery addresses in Germany, France, Italy and Luxembourg are processed by SINCONA Deutschland GmbH, a company based in Germany.

If auction purchases are to be delivered directly from Switzerland or collected in Switzerland, invoicing is handled by SINCONA AG in Switzerland.

The buyer's premium is 20%. For items subject to import VAT in Germany, the applicable import VAT of 7% (reduced rate) or 19% (standard rate) will be charged.

For gold coins that are on the list of VAT-exempt investment gold, the premium is also 20%.

The invoice will be issued by SINCONA Deutschland GmbH and is payable in EUR. Payment shall be made by low-cost SEPA bank transfer to a bank account in Germany.

After we have imported the auction purchases into the EU, they will be delivered to you by parcel post within the EU and therefore without further taxation.

A flat fee of EUR 25 is payable for the processing of auction purchases via SINCONA Deutschland GmbH, which covers both shipping and insurance.