1943 Naval Gunnery School 7th Advanced Course of Artillery Calculators Graduation Сommemorative Watch Fob/1941年海軍砲術学校第七期高測練紀念章

See also https://asiamedals.info/threads/194...ors-graduation-sommemorative-watch-fob.27193/.

Obverse

測的班 - [Artillery] Calculator Group

reverse

紀元2601年 - 1941

海軍砲術學校 - [Yokosuka] Naval Gunnery School

第七期 - 7th Class/Course

高測練紀念 - Advanced [Artillery] Calculator Training Commemorative

Original case.

砲校 - Artillery School

高測練紀念章 - Advanced Calculator Training Commemorative Badge