Help to ID Chinese(?)/Japanese(?) coin

[mindcrime1988]

I found this coin metal detecting and I'm not sure which country it originated from, denomination and year it was minted.

Lots of great talent on this forum and I'm sure somebody can chime in and tell me all about it. Thanks in advance.

 

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[Mackaydon]

Japanese 10 yen; mint dates: 1951-1989.
Don.....

 

[mindcrime1988]

Japanese 10 yen; mint dates: 1951-1989.
Don.....

Thanks a bunch Mackaydon. You have been very helpful to me and lots of other folks in the past.