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
Customs Repatriation to Greece Raises Questions
U.S. Customs recently confiscated fifty-one ancient coins and repatriated them to the Greek Government. But was this act really covered by the MOU with Greece? Peter Tompa gives coin collectors some advises.
2023 American Medal of the Year Award
In 2023, the American Medal of the Year award goes to a medallist who paid tribute to Ukraine and its president. Two other medals were chosen as finalists.
Archive: Coins, Medals and more

The Secret of the Success of State Quarters, UNESCO Coins and Federal State Series
25 years ago, the United States of America started a new chapter in numismatic history. Their State Quarters became the model for many other successful coin programs – including Spain’s UNESCO World Heritage Site series.

For Railroad Fans: The Suram Tunnel
Railroad history is linked to numismatics in many ways. Fascinating large-scale projects were often celebrated with medals and commemorative coins. Our example takes us to Georgia: A medal that will be offered for auction by Künker commemorates the opening of the Suram Tunnel.

















A New Member to Join the SINCONA Team: Michael Otto
The SINCONA team is excited to welcome a new member. As of 1 January 2025, Michael Otto is working at the SINCONA Group’s headquarters in Zurich. He is looking forward to taking over the position as Head of Numismatics.
CCG’s Mark Salzberg Announces Retirement
After nearly 40 years in the world of collectibles, Mark Salzberg has announced his retirement. His decisions as leader of Certified Collectibles Group have had much impact on numismatics.