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

The Gnadenpfennig – An Object Between Decoration, Medal, and Coin

Gnadenpfennigs are an extremely rare category of numismatic objects. Künker is proud to offer nine lots in auction 418 on 29 January 2025 that are, or are likely to be, gnadenpfennigs. We explain the purpose of these issues and when they were created.

Numismatic Issues Concerning Health, Medicine and Women in Times of Covid, Part 3: Personifications of Health and Medicine

Over the course of the Covid pandemic, health care professionals have attracted increased media attention. Gabriele Sturm examined the question of how women in health care professions were depicted on coins in the past, and how they are represented today. The last part of this series deals with personifications of health care and medicine.

Sotheby’s, The One (2nd February 2024), lot 8: The 2nd May 1840 Penny Black Cover. Estimate: $1,500,000 – $2,500,000.

The First Piece of Mail Sent Using a Stamp to Be Offered at Sotheby’s

A Penny Black affixed to a Mulready envelope is among the most valuable items in Philately ever offered at auction. The earliest posted envelope using a prepaid stamp, dating to 1840, will be sold at Sotheby’s with an estimate of $1.5–2.5 million.

VOC: The Other Side of the Dutch Golden Age

VOC coins tell the story of the Netherlands’ colonial past. The States General granted the VOC all the rights of an independent state: it could declare war, make treaties and issue its own currency. Join us on a trip to Indonesia, the place where the spices grew that financed the Dutch Golden Age.

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