Countermark

https://rpc.ashmus.ox.ac.uk/countermark/852 
GIC 729 ii
X
square 
c. 6.5 mm 
 

Coins with this countermark

Number Image TypeNumber CoinNumber VolumeNumber
RPC I, 3868 Show 3868 27 1
RPC I, 4951 Show 4951 12 1
RPC I, 3868 Show 3868 37 1
RPC II, 1982 Show 1982 15 2