154Prussia. Frederick William IV, 1840–1861.
Gold medal in the weight of 50 ducats
commemorating the publication of the second volume
of Alexander von Humboldt’s *Kosmos*.
NGC MS 65 PL.
From the estate of Emperor William I.
Estimate: 40.000 Euro

166Prussia. Frederick William IV, 1840–1861.
Gold medal in the weight of 50 ducats commemorating
the unveiling of the equestrian statue of
Frederick the Great on Unter den Linden in Berlin in 1851.
NGC MS 63 PL.
From the estate of Emperor William I.
Estimate: 25.000 Euro

191Prussia. William I, 1861–1888.
General’s Medal in the weight of 120 ducats, 1871,
commemorating the victory over France.
A magnificent specimen.
From the estate of Emperor William I.
Estimate: 75.000 Euro

297Russia. Nicholas I, 1825–1855. Family ruble.
1 1/2 rubles (10 zlotys), 1835, St. Petersburg.
NGC MS 64 (Top Pop).
Only 36 examples struck.
A cabinet piece from polished dies.
From the estate of King Frederick William IV.
Estimate: 250.000 Euro

1098Holland. Province.
5 ducats, 1681.
Struck with the dies of a guilder.
NGC PF 64 Cameo.
Proof.
Estimate: 40.000 Euro

1192HRE. Ferdinand II, 1592–1618–1637.
5 ducats, 1634, Vienna.
Extremely rare.
Extremely fine-uncirculated.
Estimate: 10.000 Euro

1266HRE. Vienna.
Salvator Medal in the weight of 12 ducats,
n. d.(around 1840).
NGC PF 61 CAMEO.
Proof.
Estimate: 15.000 Euro

1334City of Regensburg.
5 ducats, n. d. (1708–1710),
with the title of Joseph I. NGC MS 64.
Extremely rare. According to mint records,
only 7 copies struck.
A magnificent piece.
Estimate: 25.000 Euro

1602German New Guinea.
10 New Guinea Marks, 1895 A.
NGC MS 65.
A magnificent piece.
Estimate: 50.000 Euro

2757Saxony.
John Frederick the Magnanimous and
Maurice, 1541–1547.
Trinity Medal, 1544.
A masterpiece of German medal art. Magnificent,
excellent craftsmanship.
Estimate: 75.000 Euro

People and markets

Antiquarianism and Numismatics

From May 29 to July 28, a fascinating exhibition is on view at the University Museum in Toruń, Poland.
read more at our partner SIXBID

Why visit MIF?

Andrea Pancheri travelled to Maastricht to attend the MIF. Here she shares her impressions and the participants’ reactions to the dedicated coin section planned for 2027.
read more at our partner SIXBID

From May 29 to July 28, a fascinating exhibition is on display at the University Museum in Toruń, Poland.

Antiquarianism and Numismatics

From May 29 to July 28, a fascinating exhibition is on view at the University Museum in Toruń, Poland.
read more at our partner SIXBID

Why visit MIF?

Andrea Pancheri travelled to Maastricht to attend the MIF. Here she shares her impressions and the participants’ reactions to the dedicated coin section planned for 2027.
read more at our partner SIXBID







Come to think of it

Reenactment as a Tool for Numismatic Education: On the Death of Patrick McBride

Patrick E. McBride passed away on June 2, 2026. Any visitor to an ANA convention knew him: he brought numismatics to life. His portrayal of Ben Franklin brought joy to many people. A role model for numismatic education!
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

Patrick E. McBride (1952-2026). Foto: Kolbe & Fanning

Reenactment as a Tool for Numismatic Education: On the Death of Patrick McBride

Patrick E. McBride passed away on June 2, 2026. Any visitor to an ANA convention knew him: he brought numismatics to life. His portrayal of Ben Franklin brought joy to many people. A role model for numismatic education!
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

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Coins, Medals and more

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

The Imperial Collection

On 23 June 2026, the first part of the Hohenzollern coin collection will go under the hammer. The Osnabrück-based auction house Künker will be auctioning coins and medals from the collections of the Kings of Prussia and the Emperor of Germany. We present a selection of particularly special items and explain what the coins in the collection reveal about the character of Emperor Wilhelm I.
read more at our partner SIXBID

Archive

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.

The Casa de la Moneda Museum in Madrid

Are you interested in coins of Spain and the Hispanic world? Then we have an important address for you: the Museum of the Casa de la Moneda in Madrid, which is located on the premises of the Spanish mint.

Christian IV. 4 Speciedaler 1624, Kopenhagen. From Auction Künker 408 (18.-19. June 2024), No. 14. Background: Christian IV of Denmark and Norway. Bust at Rosenborg Castle / Copenhagen. Photo: UK.

400 Years Ago – The Founding of Kongsberg

On 2 May 1624, Christian IV of Denmark and Norway founded the mining town of Kongsberg. A series of coins to be offered in the upcoming Künker sale tells us of the hopes that the ruler placed in the silver from these mines.

Horace Vernet, Barrikadenkampf in der Rue Soufflot, Paris, 25. Juni 1848 (Juniaufstand).

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.

On the road

The Mercado de Monedas y Sellos on Plaza Mayor

Madrid is unique worldwide: nowhere else has hosted a coin and stamp market every Sunday for nearly a century. At around 100 stalls, collectors of all ages browse coins from ancient times to the euro.
read more at our partner SIXBID

French Reparations, the Imperial War Treasury, and the July Uprising

After the Franco-Prussian War (1870–71), France paid Germany 5 billion francs—but what became of it, and how did it shape German power? A visit to Spandau Fortress.
read more at our partner SIXBID

The Mercado de Monedas y Sellos on Plaza Mayor

Madrid is unique worldwide: nowhere else has hosted a coin and stamp market every Sunday for nearly a century. At around 100 stalls, collectors of all ages browse coins from ancient times to the euro.
read more at our partner SIXBID

Who is who

Fun

Franklin’s World:

Good to know

Selling coins and the age-old question: How do I get the most for my coins?

Consigning items for auction requires choosing the right auction house—one that gives the collection proper attention and reaches the right buyers. Commission is often a secondary consideration.
read more at our partner SIXBID

What is provenance?

Provenance: This term plays a decisive role in the coin trade today. Provenances are worth their weight in gold. The same antique coin with a proper provenance can cost several times more than it would without provenance. So what is provenance?
read more at our partner SIXBID

The Mercado de Monedas y Sellos on Plaza Mayor

Madrid is unique worldwide: nowhere else has hosted a coin and stamp market every Sunday for nearly a century. At around 100 stalls, collectors of all ages browse coins from ancient times to the euro.
read more at our partner SIXBID