Offhand, I see several that are from the reign of Kao Tsung (1736-1795, Ch'ing Dynasty) plus at least three of Hsuan Tsung (1821-1850, also Ch'ing Dynasty) all of which are quite common. If you can show the reverses, it'd be possible to identify the specific mints from which they originated.
@jdg, first welcome to CCF. Second, while of course we are happy to help you with identification, if you really have a significant number of them, consider purchasing David Hartill's book on Cast Chinese Coins.
"If you climb a good tree, you get a push." -----Ghanaian proverb
"The danger we all now face is distinguishing between what is authentic and what is performed." -----King Adz
I'll add that short of buying the book mentioned, here's a website that is very helpful for sorting out coins of the Ch'ing dynasty (which will comprise the vast majority of cash coins you'll encounter):