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
Museum of American Finance Announces New Exhibit Headquarters
The Museum of American Finance, a Smithsonian affiliate, is relocating to Boston with a new 5,400 sq ft space set to open on July 1, 2026. This marks its first permanent exhibit location since leaving 48 Wall Street in New York in 2018 after a flood damaged the facility but spared its renowned collections.
Fakes, Counterfeits, Imitations – CoinsWeekly NYINC Special Issue
It is every coin collector’s greatest fear: the precious centerpiece of a collection turns out to be a fake. But what can you do if suspicions arise? Our new CoinsWeekly Special Issue draws attention to different aspects of fakes, counterfeits and imitations.
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.

Farewell to the Penny: (No) Impact on Numismatics?
The United States Mint is ending production of the one-cent coin – triggering a rush on 2025 penny rolls. But one expert urges collectors to stay calm.













German Coins in 2026: Two New Series and a Familiar Face
The Federal Ministry of Finance has published the coin programme for 2026. Collectors can look forward to a total of twelve coin issues covering a wide thematic spectrum.
Manfred Dunker Honored as the Founder of Modern Coin Marketing
Manfred Dunker played a decisive role in the creation of MDM and is probably the most influential person in the history of modern commemorative coins. At the World Money Fair 2025, Samlerhuset Group paid tribute to its most important employee.