Countermark

https://rpc.ashmus.ox.ac.uk/countermark/1369 
GIC
CRS monogram
rectangular 
CRS might stand for Colonia Romani Socii? (for Socii Romani see J. Nollé, ‘Colonia und socia der Römer’, in C. Schubert et al. (eds), Rom und der Griechische Osten (Stuttgart, 1995), pp. 350–70) 

Coins with this countermark

Number Image TypeNumber CoinNumber VolumeNumber
Show 185
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