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 127 1 4.2
RPC IV, 690 (temporary) Show 407 1 4.2
RPC IV, 716 (temporary) Show 223 7 4.2
RPC IV, 690 (temporary) Show 407 2 4.2
RPC IV, 7777 (temporary) Show 8 5 4.2
RPC IV, 528 (temporary) Show 197 2 4.2
RPC IV, 11210 (temporary) Show 144 1 4.2
RPC IV, 738 (temporary) Show 379 5 4.2
RPC IV, 11241 (temporary) Show 411 1 4.2
RPC IV, 2550 (temporary) Show 291 1 4.2
RPC IV, 575 (temporary) Show 312 2 4.2
RPC IV, 11196 (temporary) Show 87 2 4.2
RPC IV, 9162 (temporary) Show 124 3 4.2
RPC IV, 740 (temporary) Show 391 3 4.2
RPC IV, 9169 (temporary) Show 406 1 4.2
RPC IV, 518 (temporary) Show 59 3 4.2
RPC IV, 752 (temporary) Show 245 2 4.2
RPC IV, 9689 (temporary) Show 378 2 4.2