Countermark

https://rpc.ashmus.ox.ac.uk/countermark/808 
GIC 687
Φ
shaped 
9 mm long x 4 mm wide (at widest point) 
Corinth (Corinthia)
On obverse; Φ for Phlius 
List of countermarks View on a map

Coins with this countermark

Number Image TypeNumber CoinNumber VolumeNumber
RPC I, 1156 Show 1156 2 1
RPC I, 1145a Show 1145 2 1