Japanese NCO cap

[Remka]

Hello everyone,

Do you have any information on this cap model without ventilation holes?
This one seems to be unused cap of stock and it misses the lining inside.

Thanks for your help.

Best regards

[GHP]

Do you have any information on this cap model without ventilation holes

The Nakata Shoten book identifies it as

昭和20年製
Showa 20 [1945] Manufacture

[Remka]

Hi Guy,

Thank you for your help