Archive: People and Markets
Giant’s Causeway: A Natural Wonder at Risk – Because of Coins?
One of Britain’s most iconic natural landmarks is under threat – because tourists are decorating the famous basalt columns of the Giant’s Causeway with coins. What may seem like a well-meaning gesture is now causing increasing damage to the geologically unique rock formation.
Between Tradition and the Demands of a New Economic World
The 32nd Mint Directors Conference took place in Cape Town from April 27th to 29th, 2025. It was the highlight of my numismatic journey through South Africa. In an international context, South Africa presented itself as a promising country of (numismatic) opportunities.
Archive: Coins, Medals and more

The Great Elector, Taxes and the Rise of Prussia
On 1 February 2024, the Künker auction house will hold its 400th auction sale. Among the 770 lots are very rare issues from the reign of Frederick William of Brandenburg-Prussia. They bear witness to the achievements of the Great Elector, who brought prosperity to a realm devastated by the Thirty Years’ War.

Gold from Rhodes for the Battle for Rome
On 30 October 2024, Künker will be auctioning an aureus minted by Caesar’s assassins in 42 BC. The extremely rare piece is estimated at 100,000 euros. We tell the story of a coin that takes us back to the heart of the Roman civil war.











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.
Joachim Stollhoff (18.7.1948-2.11.2024)
Claire Franklin-Werz also wrote an extensive obituary for her long-time friend and mentor Joachim Stollhoff.