Japanese Dog Tag Opinion

[cerick1450]

Hi all

I picked this dog tag up many years ago. The guy I bought it from received it and other items from a WW2 vet he had known. I remember that he told me that He used his wife's silver polish to clean it up!!! I threw it din a box and completely forgot about it.
Does this look like the authentic? Can anyone translate the markings?
Thanks

[Nick Komiya]

It looks OK, but was an unissued blank only with the serial number 77 on it.

[cerick1450]

Thank you for the help...