Countermark

https://rpc.ashmus.ox.ac.uk/countermark/316 
GIC 189
Athena?, helmeted bust l.
oval 
BM 1975-4-11-355 (Aurelius) was previously assigned to Hierocaesarea - now shown as Poroselene (Lesbus) 

Coins with this countermark

Number Image TypeNumber CoinNumber VolumeNumber
RPC IV, 1743 (temporary) Show 1087 1 4.2
Show 73