Countermark

https://rpc.ashmus.ox.ac.uk/countermark/1690 
GIC —
bearded male head r.
circular 
4.5 - 5 mm 
Uncertain (Uncertain)
possibly rod or serpent below chin; applied to what may be a worn example of RPC I, 2929. 
List of countermarks View on a map

Coins with this countermark

Number Image TypeNumber CoinNumber VolumeNumber
Show 199