33138Christian IV
gold 10 Ducat (Portugaloser)
1623
AU53 NGC
Estimate: 100.000 $

33146Frederik III
gold 10 Ducats (Portugaloser)
ND (1668-1669)
MS63S NGC
Estimate: 100.000 $

33294Frederik III
gold 10 Ducats (Portugaløser)
ND (1661)
AU Details NGC
Estimate: 100.000 $

33044Gaius (Caligula)
(AD 37-41).
AV aureus.
NGC Choice AU 5/5 - 2/5.
Estimate: 75.000 $

33085Magnentius (AD 350-353).
AV medallion of 3-solidi.
NGC AU★ 5/5 - 4/5,
Fine Style.
Estimate: 75.000 $

33120Charles III
8 Reales 1760/59
NR-JV AU58 PCGS
Estimate: 50.000 $

33215George II
gold Proof 5 Guineas 1729
PR63 NGC
Estimate: 50.000 $

33249Transylvania.
Georg Rakoczi
gold Restrike 20 Ducat 1631-Dated
MS63 NGC
Estimate: 50.000 $

33317Nicholas II
gold Proof 25 Roubles (2-1/2 Imperials)
1896
PR61 NGC
Estimate: 50.000 $

33012MACEDONIAN KINGDOM.
Alexander III the Great (336-323 BC).
AV distater.
NGC Choice AUS 5/5 - 5/5,
Fine Style.
Estimate: 30.000 $

People and markets

The London Mint Office is insolvent

The London Mint Office has been in administration since 31 July 2026. Under UK law, this refers to a form of voluntary administration involving an automatic stay of payments due to insolvency.
read more at our partner SIXBID

Update on US Tariffs on Coins

And once again, President Trump has announced new tariffs. The good news is: They do not appear to affect coins and collectibles.
read more at our partner SIXBID

The London Mint Office is insolvent

The London Mint Office has been in administration since 31 July 2026. Under UK law, this refers to a form of voluntary administration involving an automatic stay of payments due to insolvency.
read more at our partner SIXBID

Update on US Tariffs on Coins

And once again, President Trump has announced new tariffs. The good news is: They do not appear to affect coins and collectibles.
read more at our partner SIXBID







Come to think of it

Contemporary coins: a reflection of our times

To what extent do contemporary coins reflect our times and our sensibilities? Ursula Kampmann illustrates this using CIT’s ‘Scottish Highlands’ coin.
read more at our partner SIXBID

What Is the Value of a Coin?

Ursula Kampmann presents a few extreme examples—all of which were auctioned in June 2026—and analyzes the values.
read more at our partner SIXBID

Contemporary coins: a reflection of our times

To what extent do contemporary coins reflect our times and our sensibilities? Ursula Kampmann illustrates this using CIT’s ‘Scottish Highlands’ coin.
read more at our partner SIXBID

What Is the Value of a Coin?

Ursula Kampmann presents a few extreme examples—all of which were auctioned in June 2026—and analyzes the values.
read more at our partner SIXBID

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Coins, Medals and more

From 10,000 to 325,000 euros: Catherine the Great dominates the auction

The Heidelberger Münzhandlung offered a 10-ruble coin of Catherine the Great at auction 92, starting at €10,000. It climbed to €325,000. We explain why, and what makes this coin so special.
read more at our partner SIXBID

Short-Whiskered Dragon: The dragon with the short whiskers

Heritage has valued a proof coin from the Chinese mint in Tianjin, dated 1911, at US$2 million. The proof coin is extremely rare; only three examples are known to be in private hands. More important, however, is its historical significance, as the coin symbolises the changing times in China.
read more at our partner SIXBID

Archive

French History in Coins – Part 2: From the Second Republic to the Second Empire

In the 19th century, people in France suffered from hunger and poverty. There were uprisings and a revolution. But the first president of the new republic was a nephew of Napoleon and completely took after the old emperor.

A War Fought with Unusual Weapons: How Prussia Used Finance and Politics to Force the Habsburg Hereditary Lands Out of the German Confederation

On 26 March 2024, the Künker auction house will offer the Tursky Collection with coins of Emperor Franz Joseph I. We use specimens from this collection to tell the story of how Prussia used its economic sway to become the sole hegemonic power in Germany.

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.

Gaius Iulius Vindex. Denar, zwischen März und Mai 68, Vienne(?). Äußerst selten. Vorzüglich. Taxe: 1.500 Euro. Aus Auktion Heidelberger Münzhandlung 89 (12. November 2024), Nr. 113. Hintergrund: Büste Neros, im Kapitolnischen Museum in Rom (cjh1452000 - CC BY-SA 3.0) und Büste Galbas im Stockholmer Schloss (Wolfgang Sauber / CC BY-SA 3.0).

The Roman Civil War of 68/9: The Prelude to the Year of the Four Emperors

Heidelberger Münzhandlung will offer a series of coins of impeccable quality struck during the Roman Civil War at its auction on 12 and 13 November 2024. We take advantage of this opportunity to examine the historical background of these issues, going back to a time when counter-emperors did not (yet) dare to put their portrait on coins.

On the road

Boston Is Getting a Museum of American Finance

Boston is opening a new Museum of American Finance: Discover rare banknotes, U.S. financial history, and interactive exhibits exploring the world of money.
read more at our partner SIXBID

Japan Mint: Hiroshima Branch

The Japan Mint doesn’t just produce beautiful circulation coins. It also manages the entire production process in-house, from the blank to the finished coin. This makes Japan one of the few countries that are completely self-sufficient when it comes to its circulation coins. We visited the branch of the Japan Mint in Hiroshima.
read more at our partner SIXBID

Boston Is Getting a Museum of American Finance

Boston is opening a new Museum of American Finance: Discover rare banknotes, U.S. financial history, and interactive exhibits exploring the world of money.
read more at our partner SIXBID

Who is who

Fun

Franklin’s World:

Good to know

What is a Kontorniat?

The word ‘Kontorniat’ comes from Italian and is derived from the Italian ‘contorno’ (= edge). You can find out here what cultural and historical phenomenon lies behind these numismatic objects.
read more at our partner SIXBID

What is a cut bid?

Nowadays, when most bidders simply press a button on their computer, many have forgotten that, just a few decades ago, bidding was an art form. Here you can find out what psychological tricks were used in bidding and what a cut bid is.
read more at our partner SIXBID

Boston Is Getting a Museum of American Finance

Boston is opening a new Museum of American Finance: Discover rare banknotes, U.S. financial history, and interactive exhibits exploring the world of money.
read more at our partner SIXBID