Countermark

https://rpc.ashmus.ox.ac.uk/countermark/716 
GIC 590
EMP? (on reverse)
rectangular 
7 x 3 mm 
Uncertain (Uncertain)
the expansion of the letters to Emporiae (FITA 111) is most unlikely. The reading is doubtful. 
List of countermarks View on a map

Coins with this countermark

Number Image TypeNumber CoinNumber VolumeNumber
RPC I, 1657 Show 1657 47 1