Matidia.
Denarius (112 AD), Rome.
Condition: very rare, vf /vf+.

Julian II. Apostata as Caesar.
Solidus (355–357 AD), Rome.
Condition: unc

Frederik IV.
Double-Ducat 1704, Copenhagen.
With certificate of authenticity.
Condition: ef-

Johann Wilhelm.
Ducat 1753, Nuremberg.
Condition: rare, lightly worked, vf-

Archive: People and Markets
Is the EU Sleepwalking Into an Art Market Nightmare?
Enforcement of import licensing for cultural goods is just two years away, but many serious questions remain over what will happen. A detailed insight into a complicated matter.
A Year of Gold Bars in US Supermarkets: Could the Costco Model Work in Europe?
Since autumn 2023, Americans have been able to invest in gold at the wholesale chain “Costco.” Those who bought then have enjoyed a handsome return – but whether gold will ever be sold at Aldi or Lidl in Europe remains uncertain.
Archive: Coins, Medals and more

The First Years of Czechoslovak Coinage
SINCONA will auction off an impressive collection of Czechoslovak patterns. The offer includes a pattern for the Wenceslas Ducat of which only two specimens exist. Moreover, the sale features the very specimen of the Wenceslas Ducat that President Mazaryk gave to the family of the murdered Finance Minister Rašín.

The Turks, the Bohemian Estates and Two Gnadenpfennigs by Ferdinand I
SINCONA’s spring auction will be held from 13 to 15 May 2024. Among other highlights, two extremely rare gold gnadenpfennigs by Ferdinand I are on offer. The multiple coins with a weight of 10 and 15 gold gulden are among the great treasures of Habsburg numismatics. We share their story.

















Bernt Ahlström (1936-2019)
You will hardly find a dealer in the numismatic world who is completely unfamiliar with the name Bernt Ahlstrom. On the occasion of the sale of his numismatic library at Gut-Lynt, Arne Kirsch recounts the eventful life of the coin dealer and bon vivant.
The Certified Collectibles Group: More than Coins and Comic Books
In 2021, the Certified Collectibles Group surprised the numismatic community by announcing that the Blackstone investment firm would become a majority shareholder. This raised the question of what this might mean for the coin market. Ursula Kampmann was in Sarasota to visit the new Certified Collectibles Group.