Bulgaria archaeologists made a unique finding of the prehistoric times near the Ohoden village, the Bulgarian National Radio reported on Friday.
The find is a rare agriculture tool, which is made of volcanic material. The material was used as a flint by the inhabitants on the Bulgarian lands in that age.
Archaeologists stumbled upon the tool during excavations in the area that were renewed in mid-spring.
The artefact is the first such tool unearthed in Bulgaria.
The place were it was found attracted the interest of the archaeologists even more after they unearthed the intact skeleton of a person, who lived in the early Neolithic period.
The rare tool was sent to Sofia for a thorough expertise.