Countermark

https://rpc.ashmus.ox.ac.uk/countermark/444 
GIC 322
eagle standing r., head i., wings open (on reverse)
circular 
10 mm 
GIC mentions 3 coin of Rhescuporis III (from Frolova) – that are not currently in RPC V.1 

Coins with this countermark

Number Image TypeNumber CoinNumber VolumeNumber
RPC IV, 3886 (temporary) Show 2917 23 4.1
RPC IV, 3865 (temporary) Show 2888 42 4.1
RPC IV, 3886 (temporary) Show 2917 8 4.1
RPC IV, 3878 (temporary) Show 2897 38 4.1
RPC IV, 3878 (temporary) Show 2897 34 4.1