Livonian Order. Gotthard Kettler, 1559-1561.
2 1/2 Ducats n. d., mint probably Riga.
Extremely rare.
Almost extremely fine.


Elizabeth I, 1558-1603.
Sovereign n. d., (1584-1586), London.
Very rare.
Slightly bent, almost extremely fine.


Mustafa III, 1757-1774.
2 Zeri Mahbub 1757/1758 (= 1171 AH), Misr (Kairo)
Ziynet pattern.
Very rare.
Holed, almost extremely fine.


Carlos III, 1759-1788.
8 Escudos 1764, NR-JV,
Santa Fe de Nuevo Reino (Bogota).
NGC AU58.
Rare. Extremely fine.


Bankportugalöser in the weight of 10 Ducats 1689,
by J. Reteke, on the major European banking cities of
Amsterdam, Hamburg, Nuremberg, and Venice.
NGC MS63 PL. Very rare.
Extremely fine-uncirculated.


Penny 1919.
Copper-nickel pattern of the “Kookaburra Penny”
by C. D. Richardson for Stokes & Sons. Extremely rare.
PCGS SP 61.
Tiny edge faults, extremely fine.


Vereenigde Amsterdamsche Compagnie.
1/2 Daalder in the weight of 4 Reales 1601, Dordrecht.
Extremely rare. Fine patina,
very fine-extremely fine.


5 Gulden type 1846.
Highest rarity (RRRR).
PMG Choice Very Fine 35.


Archive: Coins, Medals and more

The Turks, the Bohemian Estates and Two Gnadenpfennigs by Ferdinand I
SINCONA’s spring auction will be held from 13 to 15 May 2024. Among other highlights, two extremely rare gold gnadenpfennigs by Ferdinand I are on offer. The multiple coins with a weight of 10 and 15 gold gulden are among the great treasures of Habsburg numismatics. We share their story.

Counterfeit Detection: Altered Prussia 20 Mark
An NGC expert gives us insight into his everyday life. He shows how the year on a coin from the German Empire was altered by a coin doctor.
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.
Florida Recognises Gold and Silver as Legal Tender
A new step in the monetary policy of US states: the “Sunshine State” will soon allow certain precious metal coins to be used in everyday transactions. However, this alternative form of currency must meet specific requirements in order to qualify.