Byllis, Illyria. AE13. Time of the Epirote Republic, ca 230-167 BC. 2.25 g.

Youthful helmeted head of Achilles or Alexander right.
BYL-LIS, eagle standing right on thunderbolt.

BMC 4; Schlosser 2. 
This is the most common type of Byllis coins. 

With permission of Roma Numismatics E-Sale 110, Lot 65, Auguse 2023