Naval Academy Graduation Badges made by Hattori workshop

Famous Tokyo workshop https://asiamedals.info/threads/history-labels-i-marks-of-hattori-watch-shop-tokyo.19361
Badges made by Hattori&Co usually marked with "Martlet" and "KH" or "K.H." for Kintaro Hattori.

Cased specimen.

海軍 - Naval

大學卒業徽章 - Academy Graduation Badge

 

Another cased badge made by Hattori. Pin is a later replacement.

Case.