Countermark

https://rpc.ashmus.ox.ac.uk/countermark/410 
GIC 287
tetrastyle temple (on reverse)
shaped 
c 4 x 4 mm 
Hydisus (Caria)
probably the temple of Zeus Areios whose cult was predominant n the coins 
List of countermarks View on a map

Coins with this countermark

Number Image TypeNumber CoinNumber VolumeNumber
RPC III, 2207 Show 2207 1 3