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 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.
CoinsWeekly Special Issue for the TICC Tokyo 2024
After overwhelming interest last year, we have once again published a printed CoinsWeekly Special Issue for TICC 2024, which takes place in Tokyo from April 26 to 28. If you can’t make it to Tokyo, you can download the PDF here.
Archive: Coins, Medals and more

French History in Coins – Part 3: A New Napoleon
Under Emperor Napoleon III, France experienced an economic upswing. The Paris cityscape was completely revamped, just as coin designs. The gold rush in the US thrust Europe’s silver money into a crisis. The answer came from France.

400 Years Ago – The Founding of Kongsberg
On 2 May 1624, Christian IV of Denmark and Norway founded the mining town of Kongsberg. A series of coins to be offered in the upcoming Künker sale tells us of the hopes that the ruler placed in the silver from these mines.













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.
Lars Emil Bruun (1852–1923): From the Local Inn to an International Enterprise
The auction of the exceptional Bruun collection, 100 years after the collector’s death, has attracted a great deal of attention. But who was Bruun as a person? What inspired him? On behalf of Stack’s, Ursula Kampmann went in search of Bruun’s personality and compiled a short biography.