china copper coin

could you please date this china coin?
merci beaucoup
enric

These photos don't enlarge on clicking, and without enlarging the details are not clear enough for attribution. Please repost photos that can enlarge. Most likely this coin can be matched at

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

Their original size is also this small ... I don't know how you can expect help with these I just assume this was by mistake

emperor jiaqing. I can't make out the Mongolian characters on the other side which shows the mint.

Boo chiowan

Should be this one

https://en.numista.com/catalogue/pieces30355.html

Chris

Merci beaucoup a tous pour votre aide.
excepté un qui m'a l'air d'avoir été dérangé par ma question.
Enric