Countermark

https://rpc.ashmus.ox.ac.uk/countermark/1610 
GIC
uncertain object (branch??) in incuse rectangle
rectangular 
8 x 3 mm 
no certainty applied at Cephaloedium. Object might possibly be a branch??? 

Coins with this countermark

Number Image TypeNumber CoinNumber VolumeNumber
RPC I, 635 Show 635 2 1