Size 65x50 mm.
Obverse
射爆 - Bombing
reverse
皇記2601年 - 1941
第十二期高等科航空兵器術 - 12th Advanced Course Air Weaponry
爆練習生卒業記念 - Explosives Course Graduation Commemorative
Obverse
射爆 - Bombing
reverse
皇記2601年 - 1941
第十二期高等科航空兵器術 - 12th Advanced Course Air Weaponry
爆練習生卒業記念 - Explosives Course Graduation Commemorative