Unknown Japanese document

[Materia]

Hello, I had this piece for years, lying safely, I posted similar here on 5th September 2017, I was told they were somehow connected, possibly to the same person, but being engaged with other things, and having other priorities, I never got a chance to check it, I couldn't even do it if I wanted to without knowing Japanese.

 

Thank you in advance fot any details regarding this piece.

[JapanX]

Issued on  大正十四年十月三日 = October 3, 1925 

 

陸軍下土適任證書  - Certificate of the Suitability for the Army

 

陸軍步兵上等兵 - Army Infantry Senior Soldier

 

岩名三郎 - Iwana Saburō

 

 步兵科下土適任  - Suitable for Infantry NCO School/Course