Countermark

https://rpc.ashmus.ox.ac.uk/countermark/542 
GIC 420
lyre
 

Coins with this countermark

Number Image TypeNumber CoinNumber VolumeNumber
RPC III, 1717 Show 1717 25 3
RPC III, 1704 Show 1704 1 3
RPC II, 2821 Show 2821 1 2