Manchukuo Empire
Labor Service Badges
Looking into this one...

See a nice discussion of this badge HERE.
Manchukuo National Foundation Labor Volunteer Commemorative Badge.

Koutoku 6 [1939]
Manchukuo National Foundation Labor Volunteer Commemorative Badge.

Koutoku 7 [1940]
Manchukuo National Foundation Labor Volunteer
Commemorative Badge.

Koutoku 8 [1941]
Manchukuo National Foundation Labor Volunteer
Commemorative Badge.

Koutoku 8 [1941]
Koutoku 6 [1939]

Koutoku 7 [1940]
Commemorative Badge.

Dated Koutoku 7 [1940].
Manchukuo National Foundation Labor Volunteer Commemorative Badge.