Countermark

https://rpc.ashmus.ox.ac.uk/countermark/1221 
GIC
ΗΡΑ
rectangular 
 

Coins with this countermark

Number Image TypeNumber CoinNumber VolumeNumber
RPC I, 1656 Show 1656 94 1
RPC I, 1656 Show 1656 96 1
RPC I, 1657 Show 1657 30 1
RPC I, 1656 Show 1656 111 1
RPC I, 1656 Show 1656 121 1