A coin and a copper artifact of the medieval Islamic civilization were also found at the archaeological site in Nowshahr in Mazandaran province, the Iran Cultural Heritage, Handcrafts and Tourism Organization said.
The Affelle archaeological site is about five sq km which had been used as a metal-melting shop in ancient Persia, director of the study team, Mohammad Ghamari Fatideh said.
"Pottery and other surface evidences showed the site dates back to the Parthian period," the official IRNA news agency quoted the official as saying.
The Parthian Empire was a major Iranian political and cultural power in ancient Persia.
--IANS (Posted on 29-08-2011)