Another badge of Yokohama City Naka Ward https://asiamedals.info/threads/yokohama-city-naka-ward-air-defense-corps-ooka-joint-group-badge.27536/
Specimen from the collection of Raymond LaBar. Photos courtesy of the owner.
Reverse
横浜市中區防護團幹部備習修ア章 - Yokohama City Naka Ward Air Defense Corps...
1936 yokohama city naka ward airdefensebadge
1936年横浜市中區防護團幹部備習修ア章
airdefensecorpsofficertrainingbadgebadge made by naigai workshop
japanese airdefensebadge
japanese airdefense maneuvers badge
naigai workshop
昭和十一年横浜市中區防護團幹部備習修ア章