Valuation of huge Swedish (?) coin

Found in Svedala, Sweden. About the size of a manhole cover. Looks like this one, but has an incorrect diameter 🤔

Not good at grading. Obviously not UNC, but maybe AU? Should I send it in for professional grading?

What’s the valuation?

There's a similar thing in Utrecht, Netherlands as well.

It doesn't fit in my albums, so I never took the effort to pick it up.

image from wiki: https://nl.m.wikipedia.org/wiki/Koninklijke_Nederlandse_Munt 

I once started a thread on coin monuments, long ago. You might like the samples.

https://en.numista.com/forum/topic67158.html 

Last summer I was in Athens, where they have a monument for the last Drachme accross the Central Bank. In the Dutch town of Frederiksoord is a monument for Colony money.

Do we have any albums that can store manhole covers? Asking for a friend :)

There are 2 rare years of this type: 1910, less difficult 1927. All other dates are without value.