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 4084 2 4.2
RPC IV, 9978 (temporary) Show 4084 8 4.2
RPC IV, 9978 (temporary) Show 4084 5 4.2
RPC IV, 9978 (temporary) Show 4084 1 4.2
RPC IV, 9978 (temporary) Show 4084 6 4.2
RPC IV, 9978 (temporary) Show 4084 7 4.2
RPC IV, 9978 (temporary) Show 4084 4 4.2
RPC IV, 9978 (temporary) Show 4084 3 4.2
RPC IV, 9978 (temporary) Show 4084 9 4.2
RPC IV, 9978 (temporary) Show 4084 10 4.2