Countermark

https://rpc.ashmus.ox.ac.uk/countermark/1323 
GIC
uncertain in circular punch
 

Coins with this countermark

Number Image TypeNumber CoinNumber VolumeNumber
RPC II, 2038 Show 2038 16 2
RPC I, 2397 Show 2397 1 1
RPC I, 2565 Show 2565 4 1
Show 78
RPC I, 2565 Show 2565 13 1
RPC I, 2565 Show 2565 14 1