Most likely these badges were issued to the participants of an unknown conference. Original ribbon is missing.
Size 51 x 17 mm.
Thickness 7 mm.
Stylized combined logos of two railways South Manchurian Railway /Manetsu/...
1932 south manchurian railway rowing club badge
1932年南満洲鉄道漕船部復活第一回漕艦競漕章
south manchurian railway 1st rowing race badge
south manchurian railway badge
south manchurian railway watch fob
南満洲鉄道章
In the center of obverse
Emblem of Manchukuo Railway General Administration Bureau that was in use until 1938
around the emblem
愛護鉄路 - Railway Protection
reverse
愛護鉄路章 - Railway Protection/Security Badge