They should make an app, (don't know if they do) for phones, to take a picture and be able to guide us in the rite direction, kind of like the app where it hears another song playing and tells the artist and title. just an idea. wish I could help.
There is no pic, but, maybe it is this one. https://www.ngccoin.com/price-guide...0-cash-km-pnc7-1912-cuid-1066212-duid-1311279
Struck around 1920 in Honan Province, no date on the coin. This is a less common variety as the title says China instead of Honan.