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.
Space Premiere – Mint of Poland Created the World’s First Flying Coin
The Mint of Poland presented the UFO MP-1766 at the World Money Fair 2024, which is said to be the first flying coin in the World. The coin is lifted by an internal motor and, upon interaction with a specially designed base, it levitates due to the magnetic field generated between them.
Archive: Coins, Medals and more

Record! South African Rarity Leaves All Previous Top Prices Far Behind
Recently, a South African coin was auctioned at Heritage for $1.8 million (excluding premium) – exceeding the previously highest known auction results for South African coins by a remarkable $1.5 million. What makes the “Single 9” such a rarity?

The Turks, the Bohemian Estates and Two Gnadenpfennigs by Ferdinand I
SINCONA’s spring auction will be held from 13 to 15 May 2024. Among other highlights, two extremely rare gold gnadenpfennigs by Ferdinand I are on offer. The multiple coins with a weight of 10 and 15 gold gulden are among the great treasures of Habsburg numismatics. We share their story.













The Coin Hoard of Merishausen
From 15 March to 19 October 2025, the Museum zu Allerheiligen in Schaffhausen, Switzerland, is mounting a special exhibition on the coin hoard of Merishausen, presenting the results of research on this interesting ensemble to the public.
Highly Rare in Circulation: 2-Euro Commemorative Coins from San Marino
San Marino’s circulation coins are rare – even in the small Republic itself. And San Marino also issued just a few 2-euro commemorative coins. A real challenge for collectors. Fortunately, numiscontrol has some tips.