imperial japanese navy school graduation badge
japanese naval engineering school graduation badge
japanese naval school graduation badge
japanese naval school graduation watch fob
japanese navy school graduation watch fob
naval engineering school 11th regular course badge
naval engineering school commemorative badge
naval engineering school commemorative watch fob
海軍工作学校メダル
海軍工作学校工作術練習生卒業記念メダル
海軍工作学校工作術練習生卒業記念第十一期普通科メダル
海軍工作学校第十一期普通科生卒業記念章