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
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.
Royal Mint Unveil New Charles III Reverse Designs for Circulation Coinage
Coat of arms give way to flora and fauna: the Royal Mint have unveiled the new reverse designs for the circulation coinage of the United Kingdom. Learn more about the new designs here.
Archive: Coins, Medals and more

For Railroad Fans: The Suram Tunnel
Railroad history is linked to numismatics in many ways. Fascinating large-scale projects were often celebrated with medals and commemorative coins. Our example takes us to Georgia: A medal that will be offered for auction by Künker commemorates the opening of the Suram Tunnel.

The Secret of the Success of State Quarters, UNESCO Coins and Federal State Series
25 years ago, the United States of America started a new chapter in numismatic history. Their State Quarters became the model for many other successful coin programs – including Spain’s UNESCO World Heritage Site series.













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.
Switzerland is “Guest of Honor” at the World Money Fair 2025
Next year, Switzerland will be the guest country at the World Money Fair. The Federal Mint Swissmint has a very special highlight in store for the fair: it will be presenting the 100-franc Gold Vreneli anniversary coin to the world for the first time.