Established on February 10, 1940 by Ministry of Communications Ordinance No. 4. Originally badge was named 顕功章 /Distinguished Service Badge or Meritorious Service Badge/.
In 1943 name (as well as design) was changed to 船員勤勞章 /Seaman's Diligence Badge or Seaman's Meritorious Achievement/...
japanese civil goldenkite medal
japanese civil goldenkite order
japanese marine badge
japanese ministry of communications badge
japanese naval badge
japanese seaman's service badge
marinegoldenkite
ministry of communications seaman's service badge
海の金鵄勲章
船員勤勞章
船員顯功章
遞信省章
遞信省船員勤勞章