Countermark

https://rpc.ashmus.ox.ac.uk/countermark/796 
GIC 671
Ε
square 
4 x 4 mm 
 

Coins with this countermark

Number Image TypeNumber CoinNumber VolumeNumber
RPC I, 3655 Show 3655 3 1
RPC I, 3656 Show 3656 7 1