Japanese inscription in a Kousho case

[Jofre]

Good afternoon!

I recently acquired this Kousho wound badge. In the reverse of the case there is an inscription, could someone tell me what it says?

I have seen several cases of Japanese badges and medals with inscriptions, was it usual at the time?

Thank you very much guys!

[ghp95134]

軍人傷痍紀章
Military Wounded/Injury Badge

乙種項第二四五八号
Class-B, Clause #2458

昭和十六年三月八日
Showa 16th year [1941], March 8

If I'm too far off the mark, Nick will correct me.

-- Guy