Countermark

https://rpc.ashmus.ox.ac.uk/countermark/1393 
GIC
Β on obverse
oval 
6 x 4.5 mm 
 

Coins with this countermark

Number Image TypeNumber CoinNumber VolumeNumber
RPC I, 3353 Show 3353 4 1
RPC I, 3353 Show 3353 5 1
RPC I, 3353 Show 3353 7 1