Countermark

https://rpc.ashmus.ox.ac.uk/countermark/151 
GIC 31
ΚΥ or Κ, Cyzicus, bust r.
circular (or slightly oval) 
8.5 mm 
 

Coins with this countermark

Number Image TypeNumber CoinNumber VolumeNumber
RPC IV, 11151 (temporary) Show 126 1 4.2
RPC IV, 690 (temporary) Show 403 1 4.2
RPC IV, 716 (temporary) Show 222 6 4.2
RPC IV, 690 (temporary) Show 403 2 4.2
RPC IV, 7777 (temporary) Show 8 5 4.2
RPC IV, 528 (temporary) Show 196 2 4.2
RPC IV, 11210 (temporary) Show 143 1 4.2
RPC IV, 738 (temporary) Show 375 5 4.2
RPC IV, 11241 (temporary) Show 407 1 4.2
RPC IV, 2550 (temporary) Show 287 1 4.2
RPC IV, 575 (temporary) Show 308 2 4.2
RPC IV, 11196 (temporary) Show 87 2 4.2
RPC IV, 9162 (temporary) Show 123 3 4.2
RPC IV, 740 (temporary) Show 387 3 4.2
RPC IV, 9169 (temporary) Show 402 1 4.2
RPC IV, 518 (temporary) Show 59 3 4.2
RPC IV, 752 (temporary) Show 243 2 4.2