https://rpc.ashmus.ox.ac.uk/countermark/655 

GIC 528

ΓƐΡ | Ι(?).Η(?)Γ, branch above

square 

8 x 8 mm 

Uncertain (Uncertain)

Uncertain meaning. GIC states improbable that referred to Germanicus; otherwise a reference to one of the emperors who bore the title Germanicus, or to the mints of Germanicia Caesarea (Commagene) or Ptolemais, which was called Germanicopolis on coins struck under Claudius.