Countermark

https://rpc.ashmus.ox.ac.uk/countermark/99 
GIC 793
denominational mark Δ
Circular punch, c. 8 mm 

Coins with this countermark

Number Image TypeNumber CoinNumber VolumeNumber
RPC VII.1, 223 Show 223 10 7.1
RPC VII.1, 233.1 Show 233.1 15 7.1
RPC VII.1, 235.1 Show 235.1 1 7.1
RPC VII.1, 307 Show 307 8 7.1