See also https://asiamedals.info/threads/nak...-badges-hat-badges-and-other-artifacts.19087/
Obverse
表彰 - Commendation
reverse
中島飛行機 - Nakajima Aircraft [Company]
小泉 - Koizumi [Plant]
産業報國會 - Industrial Patriotic Service Association
Obverse
表彰 - Commendation
reverse
中島飛行機 - Nakajima Aircraft [Company]
小泉 - Koizumi [Plant]
産業報國會 - Industrial Patriotic Service Association