Countermark

https://rpc.ashmus.ox.ac.uk/countermark/890 
GIC 756
denominational mark Β
rectangular 
 

Coins with this countermark

Number Image TypeNumber CoinNumber VolumeNumber
RPC IV, 3682 (temporary) Show 2993 6 4.1
RPC IV, 3682 (temporary) Show 2993 15 4.1