Top photos, mostly Korean. The machine struck is a Japanese 10 sen, Taisho 12 (1924). Bottom three are Chinese, Qianlong emperor, 18th c. Very common.
Bottom are again Korean, but you also have two Qianlong and one Jiaqing. Machine struck are all Japanese, mostly WWII era 5 and 10 sen, plus a few modern 5 yen.
Nothing in the lot jumps out as being valuable beyond about 50 cents.
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