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
An EID MAR Denarius Set a Nordic Record
An EID MAR denarius was sold at Bruun Rasmussen establishing a record for the most expensive numismatic object ever sold at auction in the entire Nordic region according to the auction house.
Certified Collectibles Group to Acquire James Spence Authentication
Certified Collectibles Group acquires the leading autograph authentication firm James Spence Authentication.
Archive: Coins, Medals and more

Pattern of the First-Class Warrior Medal – A Previously Unknown Relic of German Colonial History
Leu’s first World Coins Floor Sale features a previously unknown pattern of a warrior merit medal for indigenous soldiers in German East Africa. This exceptional item provides rare insight into the early development of this obscure decoration.

Swissmint, a Mint of Records
Swiss numismatics is full of surprises, rarities and exciting stories. We have compiled a little overview of national and international records for you.













International Conference on Islamic Numismatics
From 18 to 20 May 2023, the ICIN – the International Conference on Islamic Numismatics – took place in Riyadh, Saudi-Arabia. A complete success! Never before have so many specialists on Islamic numismatics gathered in one place. Ursula Kampmann was there.
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.