This is a non-commercial page at my website coincoin.com showing images and descriptions of thousands of Chinese milled (machine-struck) coins of 1800s-1950. Coins were accumulated in the U.S. from collections of Daniel Ching, R.B. White, Joe DeMarco, Edgar Mandel, and others. Mostly they are coppers, and minor silver, not too many Dollars. The images are free for all to use:
https://coincoin.com/soCC.htmSome collectors have already found unusual varieties among the 10 Cash coins, which I did not notice. If you study the varieties deeply, I would be glad to correspond. Scott Semans
scott@coincoin.com