Archive: People and Markets
An “Error Coin” No Collector Is Happy About
The quality of the country’s collector coins is the subject of heated debate in Germany. This regards silver coins and colour issues. But the problem is not limited to German mints – the phenomenon of “milk spots” in particular is a major concern for coin producers around the world.
Price Decline for Monaco Euro Coins – Is the Hype Over?
For many years, Euro coins from Monaco were regarded as true treasures among collectors. The exclusive mintings from the small principality were highly sought after, with prices seemingly heading in only one direction: steeply upwards. But now that trend appears to have come to an end—why?
Archive: Coins, Medals and more

Courageous Girls in the Coin Wonderland
Gabriele Sturm illustrates how courageous heroines from children’s and young adult literature are depicted on modern coins.

Counterfeit Detection: Altered Prussia 20 Mark
An NGC expert gives us insight into his everyday life. He shows how the year on a coin from the German Empire was altered by a coin doctor.










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.
Lars Emil Bruun (1852–1923): From the Local Inn to an International Enterprise
The auction of the exceptional Bruun collection, 100 years after the collector’s death, has attracted a great deal of attention. But who was Bruun as a person? What inspired him? On behalf of Stack’s, Ursula Kampmann went in search of Bruun’s personality and compiled a short biography.