Got this coin today in a bulk lot, it's unfortunately very worn. The reverse side is almost completely worn, so no point including photo. Wondering if anyone has any idea what it is. I have a few of these Chinese empire coins, and have no idea of identifying them.
It's same size and a bit thinner than this : https://en.numista.com/catalogue/pieces1133.html
Square in middle is bigger.
I also got 10 or so of these Chinese republic coins : https://en.numista.com/catalogue/pieces9380.html
All of them are the color on the right, except one, which is the copper color on one side, and then as you can see, a dark color on the other. Looking at a side view, there is a half and half split of the colors.. Just wondering why. I tried rubbing it slightly, and no color came off.
