Toki City Group of Imperial Friends of the Military Association Badge/帝国軍友会土岐群連合会章

Reverse

帝國軍友會 - Imperial Friends of the Military Association

土岐群聯合會 - Toki Group/Union of Association

Toki /土岐市, Toki-shi/ is a city located in Gifu prefecture.

 

Another example. Looks like original pin was lost.