1921 Army Special Large Maneuvers Kanagawa Prefecture Auxiliary Police Badge/1921年陸軍特別大演習神奈川縣警察補助隊記章

Obverse

警察補助 - Auxiliary Police /補助 - assistance; support; aid/

+

Police emblem

reverse

警察補助隊記章 - Auxiliary Police Badge

大正拾年 - 1921

陸軍特別大演習 - Army Special Large Maneuvers

神奈川縣 - Kanagawa Prefecture

 

Another example.

 

Cased specimen from the collection of Raymond LaBar. Photos courtesy of the owner.

Thanks to original case we know that badges were manufactured by Samurai Shokai /サムライ商會/ workshop https://asiamedals.info/threads/history-labels-and-marks-of-samurai-shokai-trading-co-samurai.21242/