Countermark

https://rpc.ashmus.ox.ac.uk/countermark/597 
GIC 469
thunderbolt
 

Coins with this countermark

Number Image TypeNumber CoinNumber VolumeNumber
RPC II, 1719 Show 1719 1 2
Show 13
RPC IV, 6205 (temporary) Show 983 1 4.3
RPC IV, 4972 (temporary) Show 986 2 4.3
RPC IV, 11739 (temporary) Show 987 1 4.3