Nakajima Aircraft Company Koizumi Plant Healthy Nation Badge/中島飛行機小泉製作所小泉製作所健民章

Late war badge from the 1942-45 time period.

健民 - Healthy Nation/Citizens

小泉製作所 - Koizumi Plant (Located near Nishi-Koizumi station. Critically damaged by American bombardment on April 3, 1945).