Countermark

https://rpc.ashmus.ox.ac.uk/countermark/712 
GIC 586
COL
rectangular 
8 x 4 mm 
Assumed that applied when the city became a Colonia in AD 197-8 (see also cmk 581) 

Coins with this countermark

Number Image TypeNumber CoinNumber VolumeNumber
RPC II, 2028 Show 2028 4 2
RPC II, 2028 Show 2028 13 2
RPC IV, 6275 (temporary) Show 2266 12 4.3
RPC IV, 6277 (temporary) Show 2276 5 4.3
RPC IV, 6277 (temporary) Show 2276 11 4.3
RPC IV, 6277 (temporary) Show 2276 8 4.3
RPC IV, 9011 (temporary) Show 2278 3 4.3
RPC IV, 6277 (temporary) Show 2276 14 4.3
RPC IV, 6277 (temporary) Show 2276 21 4.3
RPC IV, 6277 (temporary) Show 2276 13 4.3
RPC IV, 6277 (temporary) Show 2276 10 4.3
RPC IV, 6277 (temporary) Show 2276 7 4.3
RPC IV, 6277 (temporary) Show 2276 2 4.3
Show 110
Show 366
RPC III, 3798 Show 3798 14 3