Attractive and pretty rare ...
It's time to have a little chat about this one
Peterson on p.109 gives us the name of this badge (not very exact) “Regular Attendants Badge NCO” + photo of the badge (fig.194).
That’s it.
Not much
When, to whom and for what
Well now we know that this badge was established on March 2, 1904.
Original name of this badge is 下士勤功章
下 - under
士 - officer
勤 - hard working/attendance
功 - service/merit/meritorious service
章 - badge
Or, as we call it in Moscow (by using Google translator ), Kashi Tsutomu Isao Fumi.
This badge was awarded to NCOs for exemplary performance. Candidates for this badge were selected by each unit (candidate should had at least 6 years of exemplary service). But only very few got this badge. Crème de la crème of NCO