Countermark

https://rpc.ashmus.ox.ac.uk/countermark/584 
GIC 460
star of six rays (on obverse)
circular 
5.5–6 mm 
host coin was unidentified in GIC 

Coins with this countermark

Number Image TypeNumber CoinNumber VolumeNumber
RPC I, 1740 Show 1740 5 1
RPC I, 1740 Show 1740 6 1
RPC I, 1740 Show 1740 7 1
RPC I, 1740 Show 1740 8 1
RPC I, 1740 Show 1740 10 1
RPC I, 1740 Show 1740 11 1
RPC I, 1740 Show 1740 14 1
RPC I, 1740 Show 1740 15 1