Countermark

https://rpc.ashmus.ox.ac.uk/countermark/630 
GIC 504 i
'two curvilinear motifs containing pellets'
circular with serrated border 
c. 12.5 mm 
Edessa (Mesopotamia)
The shared countermarks of GIC 26 and 696 are Edessene and suggest GIC 504i was applied at Edessa 
List of countermarks View on a map

Coins with this countermark

Number Image TypeNumber CoinNumber VolumeNumber
RPC II, 2023 Show 2023 68 2
Show 15
Show 13
Show 233
Show 209
RPC I, 4272 Show 4272 27 1
Show 466