Japanese Helmet Info Sought

[4gent0range]

Folks:
Not very familiar with Japanese militaria, however I picked this helmet up on a trip to Japan in the 80's...was wondering if anyone could give some background...any info is appreciated!...any info related to value would also be appreciated.

Thanks

[4gent0range]

Another angle

Star shot

[4gent0range]

3rd

[Jareth]

Extremely common last ditch/civilian defense helmet. Star might of been added post war. Value $75. - $125.