China Incident Badges
'Imperial Year 2601 [1941], China Incident Dispatch Commemorative, Kawahara Platoon.'

Inscribed 'Japan/China Incident Participation Commemorative, Imperial Year 2594 [1934], Japan/China
Incident Commemorative, Infantry 15th Regiment.'

Inscribed 'China Incident Commemorative.'

Inscribed 'Japan/China Incident Participation Commemorative, Showa 12 [1937], 19th Fleet.'

Inscribed 'China Incident, North China Dispatch, Oshima Platoon, Imperial Year 2601 [1941].'

Inscribed 'China Incident Dispatch Commemorative, Kita Platoon, Imperial Year 2600 [1940].'

Inscribed 'China Incident Commemorative, Naval Landing Force.'

Inscribed 'China Incident Commemorative.'

Inscribed 'China Incident
Exhibition, Miyazaki.'

Inscribed 'China Incident Commemorative, Hayabusa.
From Showa 12 [1937] August to Showa 14 [1939]
The inscription reads 'China Incident Commemorative, Army Private 1st Class Watanabe.'
The reverse appears to be an abbreviation of the soldier's rank.
China Incident Mobilization Badge. Dated
Showa 12 [1937] from July to December.

Inscribed 'China Incident Commemorative, [???] Defense Unit, Mori
Platoon, Showa 12 [1937] July 16.'
Inscribed 'Japan/China Incident.'
On the reverse 'The foundation of peace in the eastern seas.'
'China Incident Commemorative, Nagata Platoon.'
'China Incident Commemorative.'
Excellent China Incident badge dating from 1937 to 1940s.
The design on the obverse includes a gold kanji that means
'Sincerity.' The reverse has falling cherry blossoms as well as a
skull and crossbones. A 6-pointed star (Star of David) is here,
too, though I'm not sure if it is merely decorative or if it has some
Inscribed 'China Incident Commemorative, Hachimura Unit,
Corpses in the steamy grass.' The latter may be referring to a
poem or other literary source.
'China Incident War Dispatch Commemorative Badge, Shitaya Ward
Home Front Donation Association.'
'Loyalty, China Incident, War Victory Commemorative.'
'China Incident War Dispatch Commemorative,
Yamada Platoon, Handa Platoon.'
China Incident Commemorative
'Imperial Year 2600 [1940] China Incident War
Dispatch Commemorative, Hirotsu Platoon.'
Rare platoon-issued badge. Inscribed 'China
Incident War Dispatch Commemorative.
Hosokawa Platoon.'

Excellent design too. The Great Wall of China
is at the top center. Below is a partial map of
China including the cities Tsingtao,
Shanghai, and Nanking. The background
triangle has an Army star, fighter planes, and
a soldier with binoculars in the corners.
It appears as though the helmet strap
is encircling the globe.

Inscribed on obverse: 'China Incident
Dispatch Commemorative.' Reverse:
'Gift. Army Contractor Hisada. Imperial
Year 2599 [1939].'

Inscribed: 'Loyal and Brave. China Incident Dispatch Commemorative. Urawa City.'
The obverse reads 'Sea Eagles.'

Inscribed on reverse: 'China Incident Victory. Sea Eagle Participation Commemorative Badge.
2601 [1941].'

This doesn't appear to be silver.
The phrase 'Sea Eagles [
umi-washi 海鷲]' seems to be an abbreviation of a popular wartime
phrase: War Eagles of the Sea [
umi no arawashi 海の荒鷲], which was a general phrase for
Navy pilots/warplanes.

This could be referring to Pearl Harbor, but I cannot claim that with any confidence.