https://rpc.ashmus.ox.ac.uk/countermark/337 

GIC 213

Π | Ρ, Athena, helmeted bust r.

circular 

8 mm 

Priene (Ionia)

compare contemporary GIC 347 (owl). Both referred to the important cult of Athena Polias at Priene. It may be that GIC 213 was reserved for the larger denomination (c. 30 mm) and GIC 347 for the smaller (c. 23 mm)