Countermark

https://rpc.ashmus.ox.ac.uk/countermark/314 
GIC 187
Athena, helmeted head r.
GIC 187 was applied to coins that, although ascribed in BMC p. I26 n. to the reign of Augustus, and this was followed, e.g., by AMC I 249-59. were excluded from RPC I as being late Hellenistic 

Coins with this countermark

Number Image TypeNumber CoinNumber VolumeNumber
Show 29