Countermark

https://rpc.ashmus.ox.ac.uk/countermark/638 
GIC 511
ΑΔΡ
rectangular 
6 x 3 mm 
Claudia Leucas (Syria)
GIC noted coins of Macrinus and Trajan with this cmk; however, it is probable that all readings of ΑΔΡ on the Traianic coins were mis-readings of ΔΑΚ on GIC 529? 
List of countermarks View on a map

Coins with this countermark

Number Image TypeNumber CoinNumber VolumeNumber