Rare? The Japanese reads 'Japan/Russia Association Member
Badge.' I suppose the Russian inscription is the same.
Very high quality. A thick badge with nice enamels. I think this is a
post-war badge.
Inscribed 'Japan/China Incident.'
On the reverse 'The foundation of peace in the eastern seas.'
Nicely made Army badge. Marked jungin (pure silver) on the reverse, and stamped with a number.
I cannot imagine what this was used for nor what it signifies. The serial number and the fact that it
is pure silver suggest that it was an important item, but I'm really not sure.
3.5 cm across
Korean resident in Japan merit badge
Legal Affairs Bureau government badge
Official tax adviser badge, pure silver.
Patriotic Youth Brigade badge.
Inscribed 'Patriotic Youth Worker Draft Commemorative, China
Incident Special Worker's Badge, Fukuoka Prefecture Federated
Youth Brigade, 2598 [1938].'
Wartime brigade badge.
Inscribed 'Manchurian Incident War Dispatch Commemorative,
Combined 14th Brigade.  [164th Combat?] Journey of 1800
Ri.'
One
ri equaled about 4 km.
Inscribed 'Merit Badge, Saga Prefecture, Protect the Country
Association.'
English Crown Prince security forces badge with original case.
Inscribed 'English Crown Prince Security Commemorative, Taisho 12 [1923]
April, Shizuoka Prefecture.' This was the future King of England
Edward VIII.
Inscribed 'Army Special Large Maneuvers Security Forces, Gunma Prefecture,
Showa 9 [1934] November.'
\
Patriotic Youth Brigade Academy badge, as far as I can tell.
Various Badges
pg 1
徽章・記念章
A random listing of badges I have found here and there.
Some of the photos are linked to themed pages, so click on them to see more info or related badges.
Imperial Guard badge.

Inscribed 'Imperial Guard Division, Imperial Security
Commemorative, Showa 9 [1934] February 28.'
Inscribed 'Torpedo Donation, Great Japan Protect the Country Youth Association.'

Gold- and silver-colored versions.

Inscribed 'Participation Badge, 2nd Sakyou Platoon Athletic Competition
Tournament, Imperial Year 2595 [1935].'
Badge replicating the famous painting of Admiral Togo, which
shows him on the bridge of the battleship Mikasa before the
Battle of Tsushima in 1905.

Inscribed '30th Anniversary of the Japan/Russia War, Showa
10 [1935] May 27.'
Rare early badge with a dirigible in the design. Inscribed 'Meiji 37 [1904] Conquer Russia
Commemorative.'
Along with the airships on the reverse, there is an insignia on the obverse I am unfamiliar with. The
anchor suggest a Navy affiliation, and the wings suggest something to do with pilots.
According to a Japanese site I found (
HERE), there was an Airship Unit formed in 1904.

Here is some information from that site:
1877: Used in Satsuma Rebellion (Taharazaka Battle)
1904: Temporary Airship Unit formed, used to help secure Port Arthur in Japan/Russia War
1913: Airship Unit moved to Tokorozawa
1923: Airship Battalion reorganized under Air Corps Division
1927: Airship battalion moved to Chiba
1936: Re-named Airship Regiment
1937: Independent Airship Unit 1st, 2nd 3rd Battalions, participated in invasion of Nanking
1942: Independent Airship Unit 1st Battalion, participated in invasion of Thailand, French Indochina,
and Singapore.

Note that the above information is undocumented. It needs to be verified.
Small badge/medal. Appears to be late Meiji or early Taisho manufacture.
'Great Japan Education Association Member Badge.'
Small badge/medal. Appears to be late Meiji
or early Taisho manufacture.
'Great Japan Education Association Special
Member Badge.'
Small badge/medal. Appears to be late Meiji
or early Taisho manufacture.
'Great Japan Education Association Dutiful
Member Badge.'
Yasukuni Shrine badge and pin.
Interesting enamel badge dated 1938. Above the 2 enamel flags are imperial mums.
I have no information about this gathering.
2 award badges from the now-defunct Japan Tobacco Bureau. This was an official
government bureau under the Ministry of Finance. It existed from 1898 to 1949, after which it
became the Japan Tobacco and Salt Corp, and from 1985 Japan Tobacco Inc.
Inscribed as such, these badges must date pre-1949.

Nice enamel work.
Rare? The Japanese reads 'Japan/Russia
Association Member Badge.' I suppose the
Russian inscription is the same.
Very high quality. A thick badge with nice
enamels.

Similar to the badge above, but the Russian flag
and the surrounding blossoms on both sides
are different.
Note the lack of suspension decoration on this example.
The reverse inscription is slightly different: 'Great Japan
Protect the Country Youth Association Member Badge.'