Obverse
参加記念 - Participation Commemoration
reverse
学童模型飛行機滑空機飛翔競技大会 - Schoolchildren Flight Model Glider Competition
参加章 - Participation Badge
昭和十七年 - 1942
讀賣新聞社 - Yomiuri Shimbun https://asiamedals.info/threads/badges-and-watch-fobs-of-yomiuri-shimbun.29300/
Original case.
参加章 - Participation Badge
讀賣新聞社 - Yomiuri Shimbun https://asiamedals.info/threads/badges-and-watch-fobs-of-yomiuri-shimbun.29300/