Police seized 326 ancient coins, jewelry, metal and ceramic ancient artifacts during a search of various properties of a 52-year-old citizen in the town of Radomir on March 8 2007.
Officers also found two illegal hunting rifles, two gas pistols modified to firearms, cartridges of different calibre and other weapons.
The artifacts were to be smuggled and sold abroad, an Interior Ministry press release said.
Artifacts must have been discovered in the region of Radomir, famous for its numerous Thracian and Roman mounds and settlements.
The artifacts were sent to National Museum of History for analysis. The smuggler was arrested.