Countermark

https://rpc.ashmus.ox.ac.uk/countermark/866 
GIC 736
FVLM
rectangular 
variable e.g. 8 x 4 mm or 6 x 3 mm 
Legion XII Fulminata 

Coins with this countermark

Number Image TypeNumber CoinNumber VolumeNumber
RPC II, 2223 Show 2223 1 2
RPC I, 4320 Show 4320 20 1
Show 251
Show 95
RPC II, 1982 Show 1982 15 2
RPC I, 3868 Show 3868 38 1
RPC I, 4309 Show 4309 10 1
RPC I, 3869 Show 3869 22 1