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
A Historic Unique Piece Offered for Shared Ownership – A Model for the Future?
A US coin dealer is offering co-ownership shares in a top rarity: shareholders can even choose their desired piece of a rare $100,000 gold certificate.
Hidden Coins Indicate the Destruction of a City
In the 4th century, the Jews revolted one last time against Roman rule. Now, for the first time, there is archaeological evidence of the destruction of the city of Lod during the suppression of the revolt – a hoard of coins recently found by Israeli archaeologists in the ruins of a building.
Archive: Coins, Medals and more

Queen Anne: Great Britain on Its Way to Becoming a Global Power
On 26 May 2025, SINCONA will auction off part 6 of the British Collection presenting the medals of this ensemble. In this article, we will show you some of the treasures among the lots and explore the story of Queen Anne. Under her rule, Great Britain became the most important trading power in Europe.

As the King Lay Dying… – The Most Spectacular British Gold Coin of the Modern Era
In Part 4 of its extraordinary British Collection, SINCONA will be presenting several extremely rare patterns, some of which are the best-preserved specimens available on the market. In this article, we tell their story.













What the Second Trump Administration Might Mean for Collectors
What does Donald Trump’s return to the White House mean for collectors in the USA? Will the new Administration help “Make Collecting Great Again” or will it be anti-collecting business as usual at the State Department and other government agencies? Predictions are always perilous to make, but Peter Tompa has dared to make some nonetheless.
A Historic Unique Piece Offered for Shared Ownership – A Model for the Future?
A US coin dealer is offering co-ownership shares in a top rarity: shareholders can even choose their desired piece of a rare $100,000 gold certificate.