Countermark

https://rpc.ashmus.ox.ac.uk/countermark/737 
GIC 611 corr.
monogram ΡΚΑ
rectangular 
6 x 3 mm 
Calchedon (Bithynia)
The initial reading of this countermark in GIC (uncertain monogram (?), begining Β) should certainly be changed into 'monogram ΡΚΑ' 
List of countermarks View on a map

Coins with this countermark

Number Image TypeNumber CoinNumber VolumeNumber
RPC I, 1787 Show 1787 1 1
RPC I, 1788 Show 1788 1 1
RPC I, 1788 Show 1788 2 1
RPC I, 1787 Show 1787 4 1
RPC I, 1787 Show 1787 5 1
RPC I, 1787 Show 1787 2 1
RPC I, 1787 Show 1787 6 1
RPC I, 1787 Show 1787 7 1
RPC I, 1787 Show 1787 8 1
RPC I, 1787 Show 1787 9 1
RPC I, 1787 Show 1787 10 1
RPC I, 1787 Show 1787 11 1
RPC I, 1787 Show 1787 12 1
RPC I, 1787 Show 1787 13 1