Countermark

https://rpc.ashmus.ox.ac.uk/countermark/1520 
GIC 498 ii
incuse circular mark
circular incuse 
4.5 mm 
Adana (Cilicia)
GIC description was " 'heart-shaped' mark and incuse circular mark". As these were separately applied, and not always together, they have been split into 498i and 498ii. All examples of GIC 498ii also have GIC 498i, so probably that 498ii applied after 498i? 
List of countermarks View on a map

Coins with this countermark

Number Image TypeNumber CoinNumber VolumeNumber
RPC X, — (number not assigned), type ID 60236 Show 4101 8 10
RPC X, — (number not assigned), type ID 60236 Show 4101 18 10
RPC X, — (number not assigned), type ID 60236 Show 4101 17 10
RPC X, — (number not assigned), type ID 60236 Show 4101 19 10
RPC IX, 1419 Show 1419 11 9