Coin Encyclopedia
Search and identify coins from around the world — with country, denomination, metal, mint, history, and how to tell them apart.
Aurelian Antoninianus
Radiate coin of Aurelian, the soldier-emperor who reunited the fractured Roman Empire and enacted a major coinage reform introducing standardized silver content marked with XXI or KA.
Ancient
Valerian Antoninianus
Radiate coin of Valerian, the only Roman emperor ever captured alive by a foreign enemy, taken prisoner by the Sassanid king Shapur I in 260 AD.
Ancient
Roman Aureus of Augustus
A gold coin struck under Rome's first emperor, Augustus, marking the establishment of a stable imperial gold coinage that funded and symbolized the new Roman Empire.
Ancient
Reichsthaler
The standard large silver coin of the Holy Roman Empire and its constituent German states from the 16th century onward, whose name is the direct linguistic ancestor of the word 'dollar.'
European
Visigothic Gold Tremissis
Small gold coin of the Visigothic kings of Spain, evolving from crude imitations of Roman/Byzantine coinage into the first distinctly national royal coinage of post-Roman Western Europe.
European
Augustus Denarius
The main silver coin of Rome's first emperor, Augustus, whose long reign established the imperial monetary system that would last for centuries.
Ancient
Nuremberg Thaler
Silver taler struck by the free imperial city of Nuremberg, often showing a detailed cityscape view rather than a ruler's portrait, reflecting its status as a self-governing trading city.
European