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
Cristiano Ronaldo on a Commemorative Coin from Portugal? Controversy Surrounds an AI Fake
A purported special edition coin honouring the world-famous football icon is making headlines. However, it’s unlikely that Ronaldo and his peers will ever appear in your change – and there are compelling reasons for this.
The Fascinating World of Insects and Minting Errors: The Misaligned Stag Beetle
A year ago, the paint on coins from the “Fascinating World of Insects” series began to flake off. Now, new anomalies have surfaced—ones that experts find only partially explainable.
Archive: Coins, Medals and more

The Gnadenpfennig – An Object Between Decoration, Medal, and Coin
Gnadenpfennigs are an extremely rare category of numismatic objects. Künker is proud to offer nine lots in auction 418 on 29 January 2025 that are, or are likely to be, gnadenpfennigs. We explain the purpose of these issues and when they were created.

Swissmint Patterns at Numismatica Genevensis SA
Numismatica Genevensis will offer Swissmint patterns at auction on 9 and 10 December 2024. Some of these patterns belong to a commemorative coin that will not even be released until 2025. All of these patterns are true rarities – ranging from unique to a maximum of four pieces in existence!













Caribbean Guilder: Joint Currency Introduced for Curaçao and Sint Maarten
The new currency replaces the Antillean Guilder, retains its value, and is pegged to the US dollar – with fresh designs inspired by the sea and local culture.
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.