Countermark

https://rpc.ashmus.ox.ac.uk/countermark/755 
GIC 632
monogram ΚΡ or ΚΡΑ?
rectangular 
5 x 3.5 mm 
on obverse or reverse 

Coins with this countermark

Number Image TypeNumber CoinNumber VolumeNumber
RPC I, 1711 Show 1711 26 1
RPC I, 1721 Show 1721 4 1
RPC I, 1718 Show 1718 36 1
RPC I, 1718 Show 1718 44 1
RPC I, 1718 Show 1718 48 1
RPC I, 1714 Show 1714 3 1
RPC I, 1711 Show 1711 47 1
RPC I, 1711 Show 1711 15 1
RPC I, 1711 Show 1711 14 1
RPC I, 1711 Show 1711 24 1
RPC I, 1718A Show 1718 1 1
RPC I, 1718 Show 1718 63 1
RPC I, 1718 Show 1718 65 1
RPC I, 1718 Show 1718 66 1
RPC I, 1711 Show 1711 51 1
RPC I, 1718 Show 1718 67 1