Archive: People and Markets
Monnaie de Paris Faces Criticism from Enthusiastic Collectors
As athletes around the world prepare to deliver top performances at the Olympic Games, the Monnaie de Paris – France’s prestigious mint – has disqualified itself in the eyes of many collectors for unsporting behaviour. What happened?
The Numismatic Index on 13 June 2023
The numismatic index numindex transparently shows how the prices of selected coins change over time. In the style of a stock index, it was designed for collectors who consider their collection an investment. Find out about the current state of the index.
Archive: Coins, Medals and more

Frederick III of Denmark and Eben Ezer
SINCONA’s Auctions 92 to 95 will take place from 21 to 25 October 2024. This article introduces one of the many rarities up for sale: a so-called “Ebenezer” coin from Denmark. The 4-Ducat piece is extremely rare and of great historical interest.

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.










Stack’s Bowers Galleries 2024 Professional Numismatist Program
If you have ever considered making your hobby your profession, the Stack’s Bowers Professional Numismatist Program offers an opportunity to acquire the skills necessary to be successful in this field.
A Holey Dollar Returns to Toruń – An Update on the Torún Coin Theft
The Australian Federal Police have announced that they have helped return a Holey Dollar from the Toruń theft to the city’s regional museum. Here is the latest news on the theft of at least 194 coins, which is currently being tried in court.