See also https://asiamedals.info/threads/manchurian-incident-commemorative-badges-and-watch-fobs.23177/
Obverse
満州駐屯紀念 - Stationing in Manchuria Commemorative
reverse
第十三師團 - 7th division
満州 - Manchuria
Obverse
満州駐屯紀念 - Stationing in Manchuria Commemorative
reverse
In Japan dragonfly often used as a symbol of bravery. The Japanese believed (mistakenly) that the dragonfly does not fly backward, but always advances, never retreating. Therefore the dragonfly that never abandons its ground was named kachimushi, “victory insect” by the Sengoku era warriors. As a symbol of courage it was often placed on helmets, swords, commemorative sake cups and badges.
第十三師團 - 7th division
満州 - Manchuria