I discover that exactly the same coin is listed by Bahram Alaedini...I should have just looked at the right page

It's a civic copper of Farahabad, a very rare mint indeed

listed neither by R.Matthee (Monetary History of Iran) nor on Zeno.
This coin is not in better grade than mine, but however shows a good part of the mintname.
"Aries", 8,4g / 31,5mm x19 mm with this comment : "
Farahabad is the name of two famous resorts of the Safavids kings (one near Sari and the other one near Isfahan)"