Unknown China cash coins

[Gundars]

Hello!

I'm not a expert in Chinese cash coins so I would appreciate if someone could tell me a little more about these coins. From which time these are?

Thanks!

Gundars from Latvia

[pingu]

Hallo,

the left one: Dao Guang Tong Bao (1821-1851) - this is a modern forgery
the right one: Qian Long Tong Bao (1736-1795); Mint Name is difficult to read - i think: Boo Yun (Yunnan)

greeting
pingu

[Gundars]

Thanks for info!