Kabuto - a Samurai armor helmet

I wanted to post this earlier, but this is a samurai armor helmet known as "Kabuto" which was presented to my father when he was born. (1950s ?)

In Japan, May 5th is called the "Children's day"(Kodomo no hi) to celebrate and thank the child's healthy and happy growth.

During this period, each family with male child display this kind of helmet.