Countermark

https://rpc.ashmus.ox.ac.uk/countermark/526 
GIC 404
crescent
shaped 
3 x 1.5 mm 
Dium (Syria)
GIC 404 and GIC 458i and 458ii were probably applied at the same time, forming a group of celestial symbols 
List of countermarks View on a map

Coins with this countermark

Number Image TypeNumber CoinNumber VolumeNumber