Kaiyuan Tongbao? [Resolvido]

Hello,

Can anyone tell what this is? I can't read the upper letter but since it looks like one of these 門 kanjis (and I can't find anything else) I'm thinking it may be 開元通寳 / 開通元寳 – do you think that's what it is? And if so, is it possible to identify which type it belongs to?

I will add the diameter/weight later!

Hello,

Indeed it seems it is a Kai Yuan Tong Bao, of the late type if I'm not mistaken.
https://en.numista.com/catalogue/pieces46041.html
I think yours is H#14.8.

Thank you so much!