Countermark

https://rpc.ashmus.ox.ac.uk/countermark/784 
GIC 658 i
monogram P VAR
rectangular (parallelogram?) 
10 mm 
Rectangular punch 

Coins with this countermark

Number Image TypeNumber CoinNumber VolumeNumber
RPC I, 4451 Show 4451 5 1
RPC I, 4451 Show 4451 4 1