There are just too many possibilities for the first one for me to even try attributing it without a clear photo, and information on its size. It's very likely a late Imperial (1880s-1911) or early Republic (1912-1940), provincial issue. Very tough to read the date with low contrast and poor focus, but I think the ¥10 is Showa 20 something. If so, the last character has to be 6-9, which would make it Y#73, bronze, 4.5g with a reeded edge (1951-64). The basic design hasn't changed since Showa 26 (1951), except for a elmination of reeded edges in 1959, and a change in Imperial Regnal names from Showa to Heisei part way through 1989.
The Chinese coin is a 10 Cash of one of the provinces.It is an issue of Emperor Kuang Hsu (reigned 1875-1908).If you have got a Krause,it will be listed in there under the Chinese Provinces. Aidan.
