Can someone tell me what type this is please?

[Joshcamsoup]

I recently came into possession of this handsome bayonet/sword. And was hoping to get some info about it, doesn’t have a serial number, from which after  researching it, makes it rare and also an officers sword? It would be an honor to hear it from the professionals. 
-Josh

[Nazar]

Seems to be Type 30 (Variation B) bayonet.

 

Stamps are early version of Toyoda Jido Shokki Seisakusho (Toyoda Automatic Loom Works)

[robinalexander]

Hello Joshua, not really a Japanese sword in the context of this forum but, a nice package with good leather frog. I'm no expert but I have a couple of these.

 

It's made by Toyoda Jidou Shokki or Toyoda Automatic Loomworks for the Arisaka rifle.

 

Officers didn't normally carry these .... but all OR's (other ranks) did.

 

The hooked quillion was dispensed with after the 1942 ish due to production costs/time, so yours is after that time but it has a ball scabbard so it would be early in the production change. 

 

Just google Japanese Type 30 bayonets and you will find a wealth of information.

[Bruce Pennington]

The round stamp on the right of of the Nagoya Army Arsenal.

 

You'll find plenty of bayonet specialists on these forums:

Firearms of the Rising Sun - Gunboards

Japanese Militaria - Wehrmacht-awards

[Kiipu]

And our very own @BANGBANGSAN.

[BANGBANGSAN]

LB142 straight guard Type 30 bayonet with bright blade,豐田自動織機（Toyoda Automatic Loom Works)made， under Nagoya arsenal‘s (名古屋陸軍造兵廠）supervision .Ser# on the bottom of the pommel should start with Hiragana ろに,which means 100th Series.

[John C]

On 12/28/2025 at 11:02 PM, Joshcamsoup said:

doesn’t have a serial number,

Josh:

Take a look at the pommel just under the locking lug slot. You should see a serial number there, which are sometimes very faint or covered in rust/grime.

John C.

[Joshcamsoup]

Thank you very much for the great tips it’s very much appreciated! 

[Scogg]

Just now, Joshcamsoup said:

Thank you very much for the great tips it’s very much appreciated! 

Hi Joshua, and fellow Oregonian. 

While it's not specifically Japanese focused, you might be interested in the following Portland militaria events.

http://www.oregonarmscollectors.com/gun-shows.html

Lots of good guys with knowledge about guns and other various militaria. I often see Japanese bayonets there.

I won't be at the January event, but I will be at the following February event.
If you'd like, feel free to send me a message and I can bring along a book that covers some bayonet and stamp information.
Best of luck,
-Sam

[Nazar]

Let me hijack this thread for a bit. 

 

Came across this bayonet that looks like a shortened Type 30 bayonet. The scabbard seems to have a visible joint in place where it was shortened. Also, hooked quillon seems to be of untypical configuration.  Maybe someone has information on such modifications and what is more interesting, on quillon. @BANGBANGSAN ?

 

 

 

[John C]

Nazar:

Maybe a cut down type 30 with a paratrooper scabbard (see scabbard below)?

 

John C.

[Nazar]

John: I rather believe it's standard Type 30 scabbard but shortened. Look at the point where the leather mount ends. There is a visible step there. It looks like the front part of the scabbard was joined with the rear.

[Nazar]

Made some search on this thing and even as one may find shortened Arisaka bayonets, this seemed to be a "standalone" thing. Yet, it was cheap and interesting (to me) so I decided to buy it anyway. 

 

Here are some photos. As you may see, it was someone's "restoration" project. And this someone put some effort into it. The reason for the blade shortening is unclear, as well as what happened to the original hilt. The facts are as follows: a new  hooked quillon was crafted and brass welded to the bayonet, scabbard was shortened and again, two pieces were brass welded together. And even as "cleaning" took all the numbers from pommel, it was made quite accurately. I also shot a couple of photos of this bayonet side by side with standard Type 30 bayonet. One may notice the slight  difference between arsenal stamps. 

 

 

 

 

 

 

[Nazar]

 

 

 

 

 

[Nazar]

 

This thing will take its place in the "Curiosities" section of my small collection. However, even this "bayonet" turned out to have something of interest. I didn't expect to find such a large number of stamps on the inner sides of wooden grips and on the tang. 

 

 

 

 

 

 

 

[John C]

Nazar:

Could you post the muzzle ring diameter? (I would expect 14-14.5mm but could be 13.2mm).

 

John C.

[Nazar]

Sure. Oiled it and left it in the workshop, so I'll take measurements tomorrow.

[Nazar]

@John C, you are absolutely right. It is slightly off-round so diemater varies from 14mm to 14.5mm

[John C]

Okay. So the inside diameter of 14mm is an indicator that it was made for the standard rifle barrel. There were a group of school practice bayonets with diameters of 13.2mm that were for training only.

 

John C.

[Nazar]

The person who crafted the new quillon may have taken that measurement from the original (but likely damaged) quillon. I doubt that this bayonet could be mounted instead of standard type 30 bayonet since the muzzle ring offset is smaller than that of the original one.