Countermark

https://rpc.ashmus.ox.ac.uk/countermark/1433 
Martini, Pangerl 108
spearhead between Π and Μ
oval 
9 x 7 mm 
applied in Syria to Tiberian dupondii 

Coins with this countermark

Number Image TypeNumber CoinNumber VolumeNumber
RPC I, 3868 Show 3868 16 1