Help to identify - coat of arms, under crown, with two lions and two castles [επιλυμένο]

Hello,

I have a small, silver coin that I am trying to identify.

I got it as part of a package, in an auction, and although the text is quite worn out, the coat of arms is rather well visible.

The diameter is 14mm
Don't know the weight but probably around 1gr.

The two attached pictures are as clear as I can get. The edge is very thin, unfortunately, I cannot get a clear shot of it but is has some marks, like diagonal lines, equally spaced, however, not sure if they could be just damage/scratches.

I would appreciate if someone can help identify, at least the possible country of origin.

Thanx.

Spain
https://www.ngccoin.com/price-guide/world/spain-1-2-real-km-482.2-1815-1833-cuid-1082837-duid-1543824

It's Ferdinand VII of Spain on the obverse and the crowned arms of Castile and Leon on the reverse.

Edit: beaten by tdziemia during my search. And now you have an exact determination of your coin.

Although there's still a problem with the date. I also thought it is 1828 but that can't be because the letters beside the shield are GJ. For 1828 it must be AJ. GJ is for the years 1815 till 1820. But the last digit of your coin doesn't look like a 0.

The letters are pretty much GJ, I do not think there is possibility of an A there.
And, for the year, it is a twenty-something, with the last digit having a small chance of being a zero,
so, I will list it as 1820 under
https://en.numista.com/catalogue/pieces59282.html

Thank you both very much for the light-speed response and resolution.

Kindest regards