See also badge with similar design https://asiamedals.info/threads/manchukuo-1939-productivity-convention-badge.23232/
Photo courtesy of the owner.
Suspension
帝國鐵道協會 - Imperial Railway Association
総會徽章 - General Meeting Badge
Reverse
帝國鐵道協會 - Imperial Railway Association
第三十三定時総會紀念 - 33rd Regular General Meeting Commemorative
昭和十一年五月於大連市 - May, 1936 in Dairen (Dalian) City
Ribbon
岡原義司 - Okahara Yoshiji
Photo courtesy of the owner.
Suspension
帝國鐵道協會 - Imperial Railway Association
総會徽章 - General Meeting Badge
Reverse
帝國鐵道協會 - Imperial Railway Association
第三十三定時総會紀念 - 33rd Regular General Meeting Commemorative
昭和十一年五月於大連市 - May, 1936 in Dairen (Dalian) City
Ribbon
岡原義司 - Okahara Yoshiji