Countermark

https://rpc.ashmus.ox.ac.uk/countermark/815 
GIC 696
old Edessan 'BGR MLK'
square 
Abgar, King 

Coins with this countermark

Number Image TypeNumber CoinNumber VolumeNumber
RPC III, 3653 Show 3653 24 3
RPC III, 3653 Show 3653 17 3
RPC III, 3589 Show 3589 10 3
RPC III, 3653 Show 3653 83 3
RPC III, 3480 Show 3480 19 3