Japanese finds in my Dad's items

[chen]

They are not reproductions they were directly from my father who fought on the islands and these are some of several mementos he kept.

Your dad are those tough and brave marines fighting on those islands.

[rbminis]

I think it is a Japanese name plate to be displayed at....

I think Chen is correct.
This is not a Japanese dog tag.
Here is my example of a Japanese dog tag to compare, a little rough, but original regardless.
Ralph.

[sovblocgunfan]

OP, don't be surprised if the flag is a seabee souvenir. I have a flag obtained from a relative that he got in Korea as part of the early occupation force there. His unit was rehearsing for the pending invasion when the bombs were dropped, then they shipped immediately to Korea. The flag was obtained there in Korea along with a Type 26 revolver. The flag has characters on it that signify his name and address, and a buddy's name and address. They had that done there as a memento. It's just as important to me as any other battle flag.