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 2153 12 4.3
RPC IV, 6277 (temporary) Show 2163 5 4.3
RPC IV, 6277 (temporary) Show 2163 11 4.3
RPC IV, 6277 (temporary) Show 2163 8 4.3
RPC IV, 9011 (temporary) Show 2165 3 4.3
RPC IV, 6277 (temporary) Show 2163 14 4.3
RPC IV, 6277 (temporary) Show 2163 21 4.3
RPC IV, 6277 (temporary) Show 2163 13 4.3
RPC IV, 6277 (temporary) Show 2163 10 4.3
RPC IV, 6277 (temporary) Show 2163 7 4.3
RPC IV, 6277 (temporary) Show 2163 2 4.3
Show 88