See also https://asiamedals.info/threads/toy...sugamo-no-4-branch-commemorative-badge.25045/.
Obverse of the badge/case lid
Tokyo City Emblem with superimposed Army Star
豊島區防護團 - Toyoshima Ward Air Raid Defense Corps
有功章 - Meritorious Service Badge
Badges were manufactured by Yamauchi Works /山内製作所/ workshop in Tokyo.
Obverse of the badge/case lid
Tokyo City Emblem with superimposed Army Star
豊島區防護團 - Toyoshima Ward Air Raid Defense Corps
有功章 - Meritorious Service Badge
Badges were manufactured by Yamauchi Works /山内製作所/ workshop in Tokyo.