Countermark

https://rpc.ashmus.ox.ac.uk/countermark/1629 
GIC 733 iv
LXF
rectangular 
7 x 6 mm 
Dora (Phoenicia)
different size punch from GIC 733i - and both coins of Vespasian from Dora - but no certainty applied there 
List of countermarks View on a map

Coins with this countermark

Number Image TypeNumber CoinNumber VolumeNumber
RPC I, 4759 Show 4759 20 1
RPC II, 2090 Show 2090 11 2