Countermark

https://rpc.ashmus.ox.ac.uk/countermark/713 
GIC 587
CP?
 

Coins with this countermark

Number Image TypeNumber CoinNumber VolumeNumber
RPC I, 1391 Show 1391 2 1
RPC I, 1392 Show 1392 1 1
RPC I, 1391 Show 1391 3 1
RPC I, 1393 Show 1393 2 1