merit badge of imperial marine association

Merit badges of Ibaraki Prefecture Firefighting Association with similar design https://asiamedals.info/threads/ibaraki-prefecture-firefighting-association-merit-badges.24851/ Today this association is known as 一般財団法人 日本海事協会 / Nippon Kaiji Kyokai https://ja.wikipedia.org/wiki/日本海事協会 3rd...