© Classical Numismatic Group, Inc.
 Diobol - Sparadokos eagle facing right 450 BC - 440 BC
| Silver | 1.25 g | 11 mm | 
|   Issuer   |  Kingdom of Odryssa (Thracians) | 
|---|---|
|   King   |  Sparatocos (circa 450-440 BC) | 
|   Type   |  Standard circulation coin | 
|   Years   |  450 BC - 440 BC | 
|   Value   |  Diobol (⅓) | 
|   Currency   |  Drachm | 
|   Composition   |  Silver | 
|   Weight   |  1.25 g | 
|   Diameter   |  11 mm | 
|   Shape   |  Round (irregular) | 
|   Technique   |  Hammered | 
|   Demonetized   |  Yes | 
|   Updated   |  2024-10-09 | 
|   Numista   |  N#236681 | 
|---|---|
|   Rarity index   |  100% | 
Reverse
Eagle flying right, holding a serpent in its beak. All within incuse square.
Interesting fact
The Diobol - Sparadokos coin featuring an eagle facing right was used as a form of currency in the Kingdom of Odryssa, which was a Thracian kingdom located in the eastern part of the Balkan Peninsula, present-day Bulgaria. The coin was made of silver and weighed 1.25 grams, which was a significant amount for a coin at that time. The fact that it was made of silver and had a standardized weight indicates that the kingdom had a well-organized monetary system, which was unusual for that time period.