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

How do you organise an exhibition?

As part of their degree course, students from the Institute of Numismatics and Monetary History in Vienna organised an exhibition for the Mödling Museum Association. Andrea Pancheri explains.
read more at our partner SIXBID

Coin of the Year 2026

As in 2025, the Austrian Mint won three awards, as did the Monnaie de Paris, whilst Ukraine once again dominated the ‘Most Inspirational’ category. The best coin came from China.
read more at our partner SIXBID

How do you organise an exhibition?

As part of their degree course, students from the Institute of Numismatics and Monetary History in Vienna organised an exhibition for the Mödling Museum Association. Andrea Pancheri explains.
read more at our partner SIXBID

Coin of the Year 2026

As in 2025, the Austrian Mint won three awards, as did the Monnaie de Paris, whilst Ukraine once again dominated the ‘Most Inspirational’ category. The best coin came from China.
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

The Carl Ludwig House on the Raxalpe and tourism in Austria

On 22 September 2026, Künker will auction a ‘Raxalpentaler’ from the Wenzel collection. Only 100 specimens of this coin are said to have been minted, making this piece one of the rarest Austrian commemorative coins. But is it actually a commemorative coin?
read more at our partner SIXBID

The finest specimen of the rarest gold coin from the German Empire

On 23 September 2026, Künker auctions Ernst II’s 20-mark coin from a physicist’s collection—the German Empire’s rarest gold coin, limited to 1,000 pieces. NGC knows no finer specimen.
read more at our partner SIXBID

Archive

Highlights from the Bruun Collection

Stacks will sell the about 20.000 coins of the Bruun Collection in various auctions. The first sale features 300 Scandinavian rarities with an estimated value of 10 million US dollars. Learn more about two of the highlights: a Danish gold noble and a Norwegian Speciedaler dated to 1661 depicting the fortress of Akershus.

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.

Naval battle near Elseneur. Painting by Peter van de Velde. Coin: Netherlands / Holland and West Frisia. Pattern for the 1670 scheepjesschelling. Very rare. Very fine. Estimate: 200 euros. From Künker 414 (27/28 September), No. 4447.

Bloody Flag and Scheepjesschelling

On 27 and 28 September 2024, Künker will auction off part 2 of the Beuth Collection with Dutch coins in collaboration with Laurens Schulman. This important collection includes numerous rarities. But it also contains affordable coins with two-digit estimates that are just as fascinating as their unique and extremely rare counterparts, as we will prove in this article.

A postcard of the 1906 Olympic Games. In front: Gilded silver medal for a winner of the 1906 Olympic Games. From Künker auction 408 (18-19 May 2024), No. 122.

The Olympic Games That Are No Longer Recognized

In 1906, the IOC and the country of Greece invited athletes from all over the world to the Olympic Games in Athens. The Games had a lasting impact on the ceremonies surrounding the sporting showdown, even though the IOC no longer recognizes these Olympics today. A winner’s medal from the Games will be auctioned by Künker on 18 June 2024.

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

How do commemorative coins differ from collector coins?

For a long time, I thought the term ‘collector coin’ was a made-up term coined by uninformed mints. A collector coin is, in fact, by no means a commemorative coin.
read more at our partner SIXBID

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

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