Badges have three grades
甲種 - A (silver-colored badge)
乙種 - B (bronze-colored badge)
丙種 - C (bronze-colored badge)
In turn every grade has four classes.
一級 - 1st class
二級 - 2nd class
三級 - 3rd class
四級 - 4th class
Grade A badges.
2nd class.
Reverse
逓信省 - Ministry of...
japanese badge
japanese post badges
japanese postal service badge
ministry of communications badge
ministry of communications diligent service badge
勤功章
逓信省一級丙種勤功章
逓信省種勤功章
