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 25 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.
ICOMON Annual Conference 2023: Call for Papers
The 2023 ICOMON annual conference will be held in November in Malaysia. Speakers are now invited to send their abstracts on the theme: Reinforcing Museum’s sustainable competitiveness in the peak of digitization & social/global challenges.
Archive: Coins, Medals and more

The Wedding of a Century in Saxony
In the days of absolutism, a feast was not simply a gathering of friends and family. It was a political means of propagating one’s status. That is exactly what Augustus the Strong did in 1719. His son’s wedding was nothing but a welcome occasion.

Planchet Error, Overstrike, Double-Strike, Etc.: Which Errors Affect the Price of a Coin? – Part 1
The price of a coin does not only depend on its rarity and grade. There are many things that can affect a specimen’s value in a positive or negative way. This overview will help you to understand common terms, to use them confidently and to understand them in their context.













2024 Huntington Award Presented to William E. Metcalf
At the 167th Annual Meeting of the American Numismatic Society, the Archer M. Huntington Award was presented to Dr. William E. Metcalf, honoring his tremendous contributions to Roman and Byzantine numismatics.
Voting for the Best Latvian Collector Coin of 2024 is Open
From 24 March to 6 April 2025, Latvijas Banka, in cooperation with the news portal Delfi, organises the traditional public vote “Latvia’s Coin of the Year 2024”. This vote will, for the 21st time, determine the public’s favourite collector coin issued during the previous year.