2 Japan coins, help to ID the reverse [επιλυμένο]

Hello experts!

I got this coin that I believe is this one:
https://en.numista.com/catalogue/pieces121450.html

Thing is, the reverse doesn't match the one in the Numista catalog.
Both have a weird slash "", I couldn't find what that does mean.





Better light:


Coin diammeter: 24mm

Any help what coin is? And what does the reverse character means?

Thank you for any comment!

They are definitely new type kanei coins look at the feet of 寶.
https://en.numista.com/catalogue/pieces121454.html

There are no coins with a slash as a reverse character, those are just casting imperfections.

Thank you very much Idolenz!
You are the best!
SOLVED