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

New Permanent Coin Exhibition at the Ducal Palace of Mantua

The most comprehensive collection of Mantua and Gonzaga coins and medals is now on long-term display at the Ducal Palace of Mantua. The exhibition is curated by numismatist Massimo Rossi.

Giant’s Causeway: A Natural Wonder at Risk – Because of Coins?

One of Britain’s most iconic natural landmarks is under threat – because tourists are decorating the famous basalt columns of the Giant’s Causeway with coins. What may seem like a well-meaning gesture is now causing increasing damage to the geologically unique rock formation.

The Coin Hoard of Merishausen

From 15 March to 19 October 2025, the Museum zu Allerheiligen in Schaffhausen, Switzerland, is mounting a special exhibition on the coin hoard of Merishausen, presenting the results of research on this interesting ensemble to the public.

Lars Emil Bruun (1852–1923): From the Local Inn to an International Enterprise

The auction of the exceptional Bruun collection, 100 years after the collector’s death, has attracted a great deal of attention. But who was Bruun as a person? What inspired him? On behalf of Stack’s, Ursula Kampmann went in search of Bruun’s personality and compiled a short biography.

Archive: Coins, Medals and more

Record! South African Rarity Leaves All Previous Top Prices Far Behind

Recently, a South African coin was auctioned at Heritage for $1.8 million (excluding premium) – exceeding the previously highest known auction results for South African coins by a remarkable $1.5 million. What makes the “Single 9” such a rarity?

Coloured Metal from Austria: Niobium Coins

In 2003, the Austrian Mint introduced a new metal with exciting characteristics to the world of coins: niobium. The beginning of a success story.
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