Japanese National Railways Distinguished Service Badge/鉄道顕功章

Established by Japanese National Railways in August 1952.
Awarded usually as retirement recognition award.
Badge was worn on the left side of the chest between 3rd and 4th button.

Technical description.

This badge was awarded on October 14, 1969.

 

Cased badge.

Reverse of the badge and case lid read

鉄道顕功章 - Railway Distinguished Service Badge

 

Another full set.

Mark "Silver".