Chinese? | Two 19th Century Cash Coins

First one is Daoguang Emperor, looks like Yunnan Mint (you have the reverse with the Manchu script flipped)

Second is Xianfeng Emperor, Beijing Board of Public Works (you have both sides flipped)

These are 1 cash coins- 1,000 officially equal to a Chinese 1 ounce silver, or Tael (.72 tael= 1 dollar). Actually 920-960 cash= 1 tael.
Top coin is Tao Kuang (Daoguang) reign title of 1821-1850 (top and bottom characters), Tung mintmark of TuNGCh'uan, Yunnan Province. Reign titles are in Cantonese or (mandarin) transliterations- they are the same emperors.
Bottom coin is Hsien Feng (Xianfeng) reign title of 1851-1861, Yun mint mark of Yunnan-Fu, Yunnan Province. Yunnan is the furthest South-West province of China, very hot, and the coins tend to have a thinner, less proper writing style, which these do.
The top coins has a decided silvery appearance, which may be a scarce tin ( or zinc, or lead) coin, rather than the regular brass or copper issue. The Yunnan coins tended to be red copper, instead of brass, and the tin/lead/zinc composition
was a little more common here.
Top left, and both bottom coins are upside down.