Countermark

https://rpc.ashmus.ox.ac.uk/countermark/684 
GIC 555
ΝΥΣΑ
rectangular 
10 x 5 mm (with some variability) 
 

Coins with this countermark

Number Image TypeNumber CoinNumber VolumeNumber
RPC I, 4834 Show 4834 11 1
RPC I, 4834 Show 4834 12 1
RPC I, 4834 Show 4834 15 1
RPC I, 4834 Show 4834 17 1
RPC I, 4834 Show 4834 16 1
RPC I, 4834 Show 4834 13 1
RPC I, 4834 Show 4834 22 1
RPC I, 4834 Show 4834 23 1
Show 67
Show 56
RPC I, 4834 Show 4834 26 1
RPC I, 4834 Show 4834 27 1
RPC I, 4834 Show 4834 28 1
RPC I, 4834 Show 4834 30 1