Countermark

https://rpc.ashmus.ox.ac.uk/countermark/150 
GIC 30
ΚΟΤΙ before laureate bust r. (Antonine emperor?)
circular 
9 mm 
Applied twice on one example 

Coins with this countermark

Number Image TypeNumber CoinNumber VolumeNumber
RPC IV, 9978 (temporary) Show 4052 2 4.2
RPC IV, 9978 (temporary) Show 4052 8 4.2
RPC IV, 9978 (temporary) Show 4052 5 4.2
RPC IV, 9978 (temporary) Show 4052 1 4.2
RPC IV, 9978 (temporary) Show 4052 6 4.2
RPC IV, 9978 (temporary) Show 4052 7 4.2
RPC IV, 9978 (temporary) Show 4052 4 4.2
RPC IV, 9978 (temporary) Show 4052 3 4.2
RPC IV, 9978 (temporary) Show 4052 9 4.2