Matidia.
Denarius (112 AD), Rome.
Condition: very rare, vf /vf+.

Julian II. Apostata as Caesar.
Solidus (355–357 AD), Rome.
Condition: unc

Frederik IV.
Double-Ducat 1704, Copenhagen.
With certificate of authenticity.
Condition: ef-

Johann Wilhelm.
Ducat 1753, Nuremberg.
Condition: rare, lightly worked, vf-

Archive: People and Markets
Introducing Nanoshine: CIT’s Butterfly
CIT’s Butterfly seems delicate, fragile and beautiful, just like its real-life model. The technical marvel behind it only becomes apparent at second glance. Nanoshine is a completely new technology with the potential to transform the aesthetics of coin design.
Faust Vrančić: The Croatian Leonardo
Croatia issues two new collector coins as part of its “Croatian Innovators” series. They are dedicated to Faust Vrančić, a Croatian polymath whose parachute design, published in his 1595 book “Machinae novae”, is the first appearance of this device in a printed work.
Archive: Coins, Medals and more

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.

What Do Gaming Counters Have to Do with Numismatics?
On 5 July 2025, Künker will offer a complete set of trictrac pieces at its auction 425. The ensemble is of great cultural and historical value. This prompts us to ask why gaming counters are part of the numismatic field – and what insights they can offer into the numismatic daily life of the early modern period.

















CoinsWeekly News in the Coiniverse App
The Coiniverse app helps its users identify coins and manage their own collections, while CoinsWeekly provides in-depth information on numismatic topics from around the world. As a new feature, Coiniverse users can now access CoinsWeekly articles directly in the app.
Swiss Linguistic Diversity Gold Coin
The latest Swiss gold coin “Swiss Language Diversity” honors cultural diversity and multilingualism as the very essence of Switzerland.