Summer Tank Crew Helmet

[popskipa]

I need the help of the Japanese linguists on the forum.

Please translate the markings in this helmet...

Thank you for looking, Keith

[Staldion]

Hello,

Showa 19 = 1944 made.
Size is large (大).
Arsenal might be Osaka (大阪市).

Cheers,
Mat.

[GHP]

I agree with Mat. I cannot read the arsenal stamp next to the Showa date. The square box might be related to Osaka since it begins with 大.

The image below is from here

--Guy

[popskipa]

Thank you Staldion and GHP...

Keith