Countermark

https://rpc.ashmus.ox.ac.uk/countermark/211 
GIC 90
laureate bust r.
circular 
 

Coins with this countermark

Number Image TypeNumber CoinNumber VolumeNumber
RPC IV, 1275 (temporary) Show 1577 1 4.2
RPC IV, 1278 (temporary) Show 1574 2 4.2
RPC IV, 11397 (temporary) Show 1566 2 4.2