Countermark

https://rpc.ashmus.ox.ac.uk/countermark/733 
GIC 607
ΚΑΡ monogram , with crescent (?)
square or circular 
7 mm 
Antioch (Syria)
applied on coins of S C series, but unlikely applied inAntioch 
List of countermarks View on a map

Coins with this countermark

Number Image TypeNumber CoinNumber VolumeNumber
Show 254
RPC I, 4247b Show 4247 5 1
RPC I, 4277 Show 4277 18 1