Have seen anything like this one? Its size is about the same of a dime and I assume is made of copper.
From Sikyon. I cannot read inside the wreath or any Magistrates name, but probably this or a variety of it. Mine with the dove flying the other direction: Sikyonia, Sikyon. Æ Chalkous (Circa 250-200 B.C.) Obverse: Dove flying right. Reverse: ΣI within wreath tying above. Reference: Warren, Bronze 4C.7β; BCD Peloponnesos 317.12-3. 2.05g; 11mm Ex. BCD collection.
Sikyon, the wreath probably one contained Greek letters SI. Reverse top is at 8 o'clock. Too late to beat Pavlos. I don't have an AE but they also come in silver.