World War 2 Japanese Helmet Army Imperial Original Vintage Antique Iron

  

There is rust all over. There are no holes or tattered parts due to corrosion.

It doesn't fall apart when I touch it with my hands, but it is old (it is sensitive to moisture). (Former Japanese Army, Former US Army, Wartime Military Use). Inner diameter: Front width 20.5cm. Length: Depth: 24.5cm Height: approx.