Countermark

https://rpc.ashmus.ox.ac.uk/countermark/1336 
GIC
Athena, helmeted bust l.
oval 
9.5 x 7 mm 
 

Coins with this countermark

Number Image TypeNumber CoinNumber VolumeNumber
RPC IV, 4532 (temporary) Show 2477 3 4.1
RPC IV, 4532 (temporary) Show 2477 4 4.1