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
Swiss Linguistic Diversity Gold Coin
The latest Swiss gold coin “Swiss Language Diversity” honors cultural diversity and multilingualism as the very essence of Switzerland.
2022 Huntington Medal Award Goes to Wolfgang Fischer-Bossert
Dr. Wolfgang Fischer-Bossert is the recipient for the 2022 Huntington Medal in recognition of his outstanding contributions to numismatic scholarship.
Archive: Coins, Medals and more

The French Marianne I: Marianne as a Representative of the French People – Part 1
Marianne represents France as a female national allegory. Gabriele Sturm explores how she is depicted on French coins. Part 1 covers the time period until the end of the Third Republic.

Coloured Metal from Austria: Niobium Coins
In 2003, the Austrian Mint introduced a new metal with exciting characteristics to the world of coins: niobium. The beginning of a success story.













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.
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.