Countermark

https://rpc.ashmus.ox.ac.uk/countermark/466 
GIC 346
owl
 

Coins with this countermark

Number Image TypeNumber CoinNumber VolumeNumber
RPC I, 2311 Show 2311 40 1
RPC I, 2311 Show 2311 23 1
RPC I, 2311 Show 2311 11 1