Friedrich Wilhelm, the Great Elector.
Ducat 1686 LCS, Berlin.
Extremely rare.
Attractive piece.


Maximilian II.
Ducat 1855.
Only a few pieces are known.
Extremely fine-uncirculated.

Ferdinand Albrecht I.
Löser in the weight of 4 Reichstalers 1670, Clausthal.
Extremely rare.
Attractive piece.

Friedrich Adolf.
5 Ducats 1711, Detmold.
Only known piece.
Extremely fine-uncirculated.

6 Ducats, n. d. (1765-1790), with the title of Joseph II.
NGC MS 62 PL.
Extremely rare.
Attractive piece from polished dies.
Almost uncirculaed.

Johann Adolf, 1590-1616.
Portugalöser (10 ducats) n.d., Eutin.
Extremely rare and of particular
significance in monetary history.
Attractive piece.

Leopold I, 1657-1705.
20 Ducats, n. d. (after 1666), Hall,
by M. König.
Extremely rare.
Almost extremely fine.

Archive: People and Markets
George Kolbe Retires from Bookselling
After over 55 years in the numismatic bookseller business, George Kolbe decided to retire from the partnership of Kolbe & Fanning Numismatic Booksellers.
From a Collector’s Market to an Investor’s Market: Reasons, Consequences, Opportunities, Part 1
Complaining is of no use: change is coming, or may already be here. The question is how to deal with it. In order to develop smart strategies, one must be aware of what is actually happening and why. Ursula Kampmann summarizes the most important changes in the coin world in a loose series. Today: the shift from a collector to an investor market.
Archive: Coins, Medals and more

Royal Gold: England’s Five Guineas and the English Gold Currency
On 10 December 2024, Numismatica Genevensis will offer the most complete run of English Five Guineas ever sold at auction. The pieces are considered to be the most beautiful and the heaviest English circulation issues in gold. They were struck from 1668 to 1777, during the period when England replaced its bimetallism with the gold currency. Read on to find out more.

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.













National Coin Week: Spotlight on Numismatics
The American Numismatic Association (ANA) has been organising a national week of events in honour of numismatics since 1924. The ANA presents the entire spectrum of coin collecting with playful missions for children and specialist lectures from the world of science.
Metcalf Lecturer 2023/4: Benjamin Hellings
The Archaeological Institute of America named Benjamin Hellings this year’s Metcalf Lecturer. He is Curator of Numismatics at the Yale University Art Gallery and Chair of the AIA Numismatics Interest Group.