Kangxi Tong bao, but what about the mint mark? [Risolto]

Hello everyone

I found this Chinese coin an it seems to be a Kangxi Tongbao 1661-1722. So far so good, but then checking the otherside I could not figure out its mint mark. The coin is around 27mm

I would appreciate if someone could help me with some information.

Thanks

The mintmark looks like "Yun," Yunnan.

http://www.calgarycoin.com/reference/china/china8.htm

Hartill# 22.131-22.136 - Yunnan province Yün left / Yun right

Pick up your choice

could be this one:
https://en.numista.com/catalogue/pieces61568.html

Thank you all!!!