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
The Numismatic Index on 13 June 2023
The numismatic index numindex transparently shows how the prices of selected coins change over time. In the style of a stock index, it was designed for collectors who consider their collection an investment. Find out about the current state of the index.
Two-Euro Ticker: New 2-Euro Coins in February 2025
Italy celebrates the Holy Year, and Luxembourg marks the change of throne with a numismatic first: for the first time, official colour applications will appear on Luxembourg’s 2-euro coins.
Archive: Coins, Medals and more

Clémentine d’Orléans: Extraordinary Woman and Coin Collector
Few women have left such a decisive mark on the history of 19th-century Europe as Cleméntine d’Orléans, and yet it was not until 2007 that her life was honored with a biography. Künker is now offering the coin collection that once belonged to this unusual woman.

Gustav III: A Conservative Revolutionary
On 20 June 2023, Künker will auction off medals that the Swedish King Gustav III himself gave as a present to the young Peter Frederick Augustus of Oldenburg. These medals are a testament to the policies of the king who was shot dead at a masked ball in 1792.













The Mint of Finland is Dead, Long Live the Helsinki Mint
September brought bad news for the numismatic world: the Mint of Finland, once a prolific producer of circulation coins for numerous euro countries, announced it would cease operations. Many questions have since remained unanswered – but one key point is now clear: the future of Finnish coin production has been decided.
2-Euro Ticker: New 2-Euro Coins in July 2024
Croatia excites 2-euro collectors with a new city series – and significant improvements in minting quality. Portugal’s online shop has not been running smoothly.