I'm still new at identifying these. I have this ID'd as Qianlong but the other side doesn't seem to match the picture of any of the mintmarks on the site I'm using to ID it. Here's my coin and for comparison is the closest from the reference site. But the bottom of the character on the right looks different. What does this mean?
To be pedantic, Manchurian is a pretty different language from Chinese. The Manchu alphabet is a distant descendant of Aramaic via Mongolian. Manchu is pretty much a dead language, though. Hardly anyone even in China speaks it fluently now, much less reads the script. I once saw a Manchu-English dictionary at a used bookstore, but couldn't justify buying it at the time. Kind of wish I had. One of my wife's recent ancestors was a mix of Mongolian and Manchurian rather than Han Chinese. The facial features are a little different.
OP, I find maybe 90% of these Ching coins Beijing mints. The obverse is chinese, reverse manchu, so are unique to chinese cash coins so easy to identify as a Ching issue. The left character means boo, (mint roughly), and right side is the mint name.