Thanks - I read your reply just as I was amending my reply. So I added a picture (to show what I was on about), as was fairly sure that was where the date number would be. As you may know the coins of China and Japan and a few others do not have the year like we would know it - they use the number of years the emperor has been reigning instead. So yours was issued in the ninth year, hopefully. Anyway, I too asked recently for the year of a coin I had as well, but mine did not have a year of reign on; my coin was a 10 Cash from Kiang-Nan province, and was made in 1902 it seems. So you were lucky!
P.S. There is a section in Numisdoc for coin year identification for quite a few countries. The fourth one on there is called Calendar - Japanese but those numbers (not emperors though) are also used in China. Not sure if you have seen it ...
https://en.numista.com/numisdoc/index.php?cat=4