Countermark

https://rpc.ashmus.ox.ac.uk/countermark/722 
GIC 596
ITAL (?)
rectangular 
9.5 x 5 mm 
Spijkerman connected the cmk with the Cohors Italica of Acts 10, 1. Without further evidence this is highly speculative. 

Coins with this countermark

Number Image TypeNumber CoinNumber VolumeNumber
RPC I, 4862 Show 4862 73 1