Early badge. Most likely from pre-1910 time period.
Reverse
堺在郷軍人團 Sakai [City] (堺市 /Sakai-shi/ is a city located in Osaka Prefecture, Japan) Military Reservist Group
japanese badge
japanese imperial reservistassociationbadge
japanese reservists associationbadgesakaicitymilitaryreservistassociationbadgesakaicitymilitaryreservist group badge
堺在郷軍人團章
堺在郷軍人會章
帝国在郷軍人会