China empire - Cash [Risolto]

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

1 cash Jiaqing? Boo-yuun or Boo-yuwan?
Diameter 24

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5 Cash Xianfeng... Mint/province?
Diameter 29

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​​​​​​1 cash ???
Diameter 24

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1 cash ​​​​​​???
Diameter 24

Hello,

For the 1 it's Qianlong, maybe boo yun but unsure about the mintmark.
https://en.numista.com/catalogue/pieces17924.html

For the 2, Xianfeng Zhong Bao, 5 cash, boo de mint. Seems like it has been used as an amulet. It looks genuine at first sight but I never know with the large Qing coins.

For the 3, Japan : https://en.numista.com/catalogue/pieces121454.html

For the 4, it's this one : https://en.numista.com/catalogue/pieces34504.html

Cita: "Choucas"​Hello,
​
​For the 1 it's Qianlong, maybe boo yun but unsure about the mintmark.
​https://en.numista.com/catalogue/pieces17924.html
​
​For the 2, Xianfeng Zhong Bao, 5 cash, boo de mint. Seems like it has been used as an amulet. It looks genuine at first sight but I never know with the large Qing coins.
​
​For the 3, Japan : https://en.numista.com/catalogue/pieces121454.html
​
​For the 4, it's this one : https://en.numista.com/catalogue/pieces34504.html

​Thank you very much for your help Choucas

Ťhe first 乾隆

Cita: "thnba"​Ťhe first 乾隆

​Thanks