I must have mixed them up thanks. I seperated them
its a mess its complicated since there is not much info about them so its normal.
Kokura Arsenal is the company
Well yes but there is many Ichiken and Ogura’s prototypes produced by the Kokura Arsenal. Kokura = Ogura Arsenal they are the same arsenal.
I visit my local museum today and got some photo of firearms that used by the Dutch east indies army and Japanese forces during WW2, i only take photo of the firearms that used during WW2 by the Dutch or Japanese, not post war guns like in post war Indonesian national revolution because the context of the game and for some reason they mix the display of the guns with post war used guns by Indonesian army (for example, there is a display rack with the MP 28/II alongside AKM, FN 49 and M1 Garand)
- Dutch MP 28/II
- Nambu Pistol
- (top) Vickers made Luger Pistol
- KNIL Contract Mauser C96 and Vickers Luger
- Geweer m.95 carbine alongside post war makeshift crude sten copy and knee mortar (the carbine magazine is bit off, i assume this is converted into 7.7mm ammo)
- Dutch Madsen M.15 and shorter Karabijnmitrailleur
- Another Dutch Madsen
- Type 99 or 96 Nambu in the back behind the BAR
- Type 11 LMG behind what i assume is post war FN Modele D
- Another MP 28/II with post war Madsen M/50 and what i assume is Swedish kpist m/37-39 (Suomi SMG licensed by Swedish)
- KNIL M1941 Johnson and Arisaka rifle

- Type 44 Arisaka and post war use Lanchester Mk I
- KNIL 75mm Bofors mountain gun
- KNIL helmet and saber
Bonus:
SMLE MK III Sniper rifle
Daimler Dingo (washed by the Museum army personel)
Bofors 40mm L/60
QF 2 Pounder
QF 25 Pounder
Sorry for my camera bad quality, because i need to take the photo in secret (no taking photo allowed in the Museum) and my shitty phone.
since this is Small museum there is not much weapons collection in here, the largest army Museum is in Satria Mandala Museum in Jakarta
EDIT :

I hoping to found something new like Dutch M.20 Lewis (Lewis in Dutch service only use 97 pan mag) or KNIL Carcano but the only Lewis i can find there is the British Lewis , Those KNIL weapons might been in other museum
M.20 Lewis guns were not used in the Dutch East Indies.
That’s Early pattern HK G3, pretty rare but some still used By Indonesian Military as training weapons
Ian from Forgotten Weapons made a video about it
There some evidence that some M.20 in service with the Dutch Indies Armies, When i still in High School im visiting Army weapons and Vehicle exhibition, and there were various Weapons in Display from historic weapons from Indonesian Independence era to modern era. the guide tell us there is various caliber of the Lewis that in hand on Indonesian Museum, from British, Japanese and Dutch Lewis.
Well it doesn’t look like World war 2 weapon for sure.
yeah, the museum display is kinda wack, they mix between WW2 era weapons (Leftover from KNIL and Japan) with other post war weapons like Madsen M/50 and FN 49. also a lot of the label is mismatched with other weapons


Mixed guns display
Wrongly labeled Lahti m/40 (Swedish made Lahti pistol) Pistol as Walther P38
it has a lot of cold era weapons I mean I wont mind having something like this in the TT if it was produced during WW 2 xD
The Lewis M.20 machine guns are mentioned as being part of the equipment for garrisons in the Netherlands Antilles and Suriname (Western colonies). These machine guns never reached the Dutch East Indies, forcing the local government to urgently purchase original Lewis guns and Italian Breda M30s.
welp most likely, most lewis picture in museum that i found in Indonesian museum are either lacking magazine or just the standard british mag. right now the only rare weapons pic i found is the KNIL Solothurn S-18/1000 in Dharma Wiratama Museum in Yogyakarta


Edit:
other than that, i found the physical evidence of British Browning Mk II modified for infantry in the museum firearms wall

I got info from Ian Mccollum video that just before Invasion of Dutch East Indies, the KNIL sent thousand of Geweer M.95 short rifle to Australia Lithgow factory to be converted into .303 British and arrive back just in time for Dutch East Indies Campaign, these rifle also survive the war and ended in hand of KNIL and then Indonesian army before Indonesian Army decide to convert rest of the M.95 Rifle and Carbine to .303 British.




















