What coin it that

Looks dutch to me, please show pictures of the other side and also provide the diameter and weight to make it easier to identify.

Hello and welcome to the site.

First of all, I would say some things, such as “we need more data” (measurements and photo of the other side). But Marc already said that.

And… You got lucky. I recognize that coin, I recently saw a similar one for sale with a seller I know. It's spanish. 

By the reverse photo, it looks that it's N#32164 .

Buonasera,dovrebbe essere 1 real di Ferdinando e Isabella di Spagna.

So it’s a 4 real then, not a 1, link: N#92547