Countermark

https://rpc.ashmus.ox.ac.uk/countermark/1707 
GIC —
laureate bust of emperor r., facing standing smaller figure (Asclepius?)
circular 
8 mm 
Uncertain (Uncertain)
emperor seems possibly 3rd century? 
List of countermarks View on a map

Coins with this countermark

Number Image TypeNumber CoinNumber VolumeNumber
RPC I, 2921 Show 2921 15 1