China empire - Cash [résolu]

Hi Friends,
Someone can help me with this type of coins?
Thanks in advance for all help.

1 ???
Diameter 21
gr.3.82


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2  ???
Diameter 22
gr.2.62


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3 ???
Diameter 24
gr.2.66


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4 ???
Diameter 24
gr.4.27


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5 ???
Diameter 24
gr.4.65

Hello,

1. Daoguang 1 Cash, Boo-yuwan:
https://en.numista.com/catalogue/pieces12421.html

2. Chongzhen 1 Cash:
https://en.numista.com/catalogue/pieces20639.html

3. Kaiyuan Tongbao, not sure which variety:
https://en.numista.com/catalogue/pieces20604.html

4. Qianlong 1 Cash, Boo-chiowan:
https://en.numista.com/catalogue/pieces1133.html

5. Qianlong 1 Cash, Boo-chiowan:
https://en.numista.com/catalogue/pieces1133.html

Thanks CassTaylor