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

Archive: People and Markets

Ruthenium on Euro Commemorative Coins: Mints Turn to Innovative Finishes – with the Blessing of Central Banks

Coins with exotic precious metal coatings have long been viewed with skepticism, but Malta has now set a new trend with a galvanised commemorative coin. Other eurozone countries are also embracing innovative finishing techniques to capture contemporary tastes.

Report of the ICOMON 29th Annual Conference in Kuala Lumpur

The 2023 ICOMON conference was held in Malaysia. Read here about the program, the topics presented and discussed, and where you can watch the presentations online.

CIT’s Tiffany Art Metropolis – Seoul

CIT dedicates its fourth issue of the Tiffany Art Metropolis series to an Asian city. Following Paris, Rome and London, in 2024 CIT presents the metropolis of Seoul on the Han River.

Is the EU Sleepwalking Into an Art Market Nightmare?

Enforcement of import licensing for cultural goods is just two years away, but many serious questions remain over what will happen. A detailed insight into a complicated matter.

Archive: Coins, Medals and more

Clémentine d’Orléans: Extraordinary Woman and Coin Collector

Few women have left such a decisive mark on the history of 19th-century Europe as Cleméntine d’Orléans, and yet it was not until 2007 that her life was honored with a biography. Künker is now offering the coin collection that once belonged to this unusual woman.
Bei genauer Betrachtung können Münzen besondere Merkmale aufweisen, die sich entweder gut oder schlecht auf ihren Wert auswirken. Diese zu erkennen und mit den richtigen Begriffen benennen zu können ist wichtig für jeden Münzsammler. 
Achtung, Bronzepest kann ihre Sammlung zerstören! Foto: Shutterstock.

Cleaning, Patina, Verdigris etc.: Which Errors Affect the Price of a Coin? – Part 2

The price of a coin does not only depend on its rarity and quality. In the second part of our overview we will talk about wear and tear, cleaning and the consequences of environmental processes.
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