Obverse
Emblem of South Manchuria Railway Co., Ltd.
reverse
最高技能章 - Best Skills Badge
Miniature badge.
Original case.
最高技能章 - Best Skills Badge
南満州鐡道株式會社 - South Manchuria Railway Co., Ltd.
Badges were manufactured by Mori Yoko workshop in Mukden https://asiamedals.info/threads/badges-labels-and-marks-of-mori-yoko-workshop.20422/
奉天 森洋行謹製 - made by Mori Yoko, Mukden