Countermark

https://rpc.ashmus.ox.ac.uk/countermark/1378 
GIC 39
bust of Geta or Caracalla r.
circular 
6 mm 
Alabanda (Caria)
to be used if impossible to distinguish 39i ΓΕ Geta or Α < Caracalla. Some of these might be "female bust r., hair in a bun (Domna?)" = take advice! 
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Coins with this countermark

Number Image TypeNumber CoinNumber VolumeNumber