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
Sofia Numismatic School 2023
The Sofia Numismatic School 2023 discusses ancient numismatics. A focus will be on the implementation of innovative digital methodology and the concept of Digital Numismatics. Graduate and postgraduate students can still apply!
Stack’s Bowers Announces 2025 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.
Archive: Coins, Medals and more

The Birth of the Krugerrand
The South African Krugerrand is the world’s oldest bullion coin. When it was first minted in 1967, the concept of producing a coin that matched the weight of an investment unit – one ounce – was both new and innovative. Learn more about the economic background and the meaning of its design here.

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.













New Publication on Hallmarks of Gold Coinage in Serbia and Yugoslavia
After the work of countless renowned scholars, is it even possible to make new findings in the numismatics of Austria-Hungary and the Balkans? The Austrian Research Society for Numismatics says „yes!“ and proves this with Aleksandar Brzić’s new book on Serbian and Yugoslav hallmarks on gold coins from 1882 to 1941.
NUMMUS – Spain’s New Numismatic Society
In March 2024, a new numismatic association was created in Spain with a strong commitment to private collectors as agents of cultural generation and heritage conservation. Find out more about the aims of NUMMUS here.