See also https://asiamedals.info/threads/army-aviation-maintenance-school-26th-class-of-engine-mechanics-graduation-commemorative-watch-fob.27632/ ; https://asiamedals.info/threads/1942-army-aviation-maintenance-school-24th-class-of-engine-mechanics-graduation-commemorative-watch-fob-1942.27566/...
25th class of engine mechanics watch fob
army aviation maintenance school watch fob
imperial japanese army aviation school badge
japanese army aviation school graduation badge
japanese army aviation school graduation watch fob
japanese aviation school graduation watch fob
陸軍航空整備学校卒業記念章
陸軍航空整備学校第25回機関学生卒業記念章
陸軍航空整備学校第二十五回機関学生卒業記念章
