the one with the dragon is a fantasy piece, i am not really sure about cash coins as i never really collected them......
The last two are both one cash coin from Qing Dynasty of China. The oberve legend reads Qian Long Tong Bao, which means the coin was issued in the reign of Emperor Gao Zong (1736-95). The reverse legend is the mint mark as Bao Quan, which was kind of royal mint of that time in Peiking. Enjoy them! Assur