Countermark

https://rpc.ashmus.ox.ac.uk/countermark/559 
GIC 438
star, rosette or wheel with central hub, 14? spokes or rays?
circular 
6 mm 
 

Coins with this countermark

Number Image TypeNumber CoinNumber VolumeNumber
RPC V.3, — (number not assigned), type ID 84085 Show 1634 1 5.3