Countermark

https://rpc.ashmus.ox.ac.uk/countermark/374 
GIC 251
Hygieia standing r., feeding serpent
oval 
6 x 4 mm 
 

Coins with this countermark

Number Image TypeNumber CoinNumber VolumeNumber
RPC IV, 4092 (temporary) Show 825 3 4.3
RPC IV, 4980 (temporary) Show 826 14 4.3