Countermark

https://rpc.ashmus.ox.ac.uk/countermark/396 
GIC 274
figure r. (on reverse)
oval 
8.5 x 5.5 mm 
On reverse 

Coins with this countermark

Number Image TypeNumber CoinNumber VolumeNumber
RPC VI, 4182 (temporary) Show 3537 1 6
RPC VI, 4182 (temporary) Show 3537 3 6
RPC VI, 4182 (temporary) Show 3537 5 6
RPC VI, 4183 (temporary) Show 3538 3 6