Countermark

https://rpc.ashmus.ox.ac.uk/countermark/582 
GIC 458 i
star with six rays
incuse 
3 mm 
GIC grouped 458i and 458ii together. It was noted that they were probably applied at the same time as the crescent GIC 404, forming a group of celestial symbols 

Coins with this countermark

Number Image TypeNumber CoinNumber VolumeNumber