Good morning everyone, I can't find this coin in the catalog. Weight 1,4 grams, diameter 20 mm.
I sincerely thank anyone who can help me. Giorgio
Thanks for the replies, I can't find the coin in the "numista" database. They are very similar to both the "Valens" emperor (364-378) and the "Claudius II" emperor (238-270). I thank anyone who can solve my problem.

