Countermark

https://rpc.ashmus.ox.ac.uk/countermark/1122 
RPC I index 89
monogram
For a table of the Spanish countermarks, see here

Coins with this countermark

Number Image TypeNumber CoinNumber VolumeNumber
RPC I, 108 Show 108 417 1
RPC I, 108 Show 108 433 1
RPC I, 108 Show 108 435 1