I have no experience with Chinese coins so here I am. I think this is a 1 cash Qianlong Boo-yuwan or Boo-yuun. There are many different types of these. If someone could narrow down which type (or even if I have the ID correct), it would be much appreciated.
Verweis : "CassTaylor"Hello and welcome!
Your coin is indeed a 1 Cash Qianlong (Boo-yuwan):
https://en.numista.com/catalogue/pieces19755.html
I am not sure at all about this next part, but I think yours is type F1, with the "Top stroke of マ radical in 通 curves down" comment (DH#22.257).
Hello and welcome !
I agree with this comment ; for me it's the DH#22.257 too