At a glance, all Chinese. The ones without holes are early 20th century. The cash coins with the square holes might be a bit older. Best I can give you on a quick passing note.
All are from China. Top row, middle is Daoguang (1821-1850), Board of Works mint. Top row, right is Qianlong (1736-1795), Board of Revenue mint. Both very common, worth less than a dollar each. The coins with dragons are from the late Imperial period (late 19th century up to 1912). The others are from the Republic (1912 to 1949). Nothing jumps out at me as valuable, but there are a ton of varieties and I don't know the series very well, so it's possible I'm overlooking something.Hopefully someone with more knowledge than me (or at least more patience in digging through a catalogue) can help with these.
