Chineese empire

4 coins, the legends are similar (1st is a bit different), but  weight and diameters are different.

I understand that all are Qing dynasty 1 cash. how can I understand the exact type, mint an years range?

All four are N#1133

#1

Hartill 22.203, maybe 204. The size (25 mm) points to 203. But the boo character looks more like the one on 204.

#2

Hartill 22.219, but I'm not 100% sure. It can be 215, or maybe even 218 or 222.

#3-4

Hartill 22.225 and 226 respectively

Thanks a lot!