I am trying to identify a coin and also to find out if it is real or some kind of tourist copy.
After some time trying to find lettering on internet finally I was able to read it.
Obverse lettering: FERDINANDUS:ET:ELISABE:D:G:
(Ferdinand and Isabella dei gratia)
Reverse lettering: REX:ET:REGINA:CAST:LEGIO:A:S:G
(King and queen of Castila and Leon, Aragon, Sicilia and Granada)
Diameter: 25.1mm
Weight: 4.3g
Thickness: 1.05mm
Non-magnetic


It looks similar to this 1 Real:
https://en.numista.com/catalogue/pieces32164.html
But sizes are different and I am not sure if it is silver.
Any ideas?
Many thanks in advance.