Type 30 Bayonet

[Jet Fixer]

Just some basic observations, and my best deductions:
Tokyo/Kokura arsenal stamp
blued fullered blade
hooked quillon
contoured bird's head pommel
contoured wood grips with screws

Just this combination limits the possibilities significantly. Using LaBar as my reference, I see this as being one of the following:
LB-74, or LB-76.
I am leaning toward the LB-76. The OAL should be just under 20". If you could measure the overall length, it might help to confirm this.

Aragorn243 is correct in that the hook has been bent and is deformed. From the photo, it also appears that the muzzle ring is also deformed out of round. Both of these can be fixed by someone that knows what they are doing, but in the current state detract from its value.

Based on what we can see of the serial number (and the apparent lack of a kanji), I would venture to put this into the 39th series. That is the only series of the possibilities that used a 7 digit serial number with no kanji. 313#### fits in with the known serial numbers that have been observed.

This was one of the more common bayonets produced by the Japanese, but I am certainly not discounting the possibility that it was sold to another country. The English style text in the stamp into the wood would lead to that conclusion.
For whatever it is worth, I believe that the number stamped is an "047".

The OAL is 19 and 11/16 inches. I do not know what the LB-74 and LB-76 refer to so I am not familiar with those references but I take your word for it. As for the bent quillion and muzzle ring, both of those are now fixed. This is the other stamp that I have questions on:
Attachment 116077

A European collectors forum puts the markings as possibly coming from Wakeda University which apparently was part of the schooling program for the Japanese and dates the bayonet to sometime prior to WW1. This would indicate that it was not part of a foreign military sale program.

Information

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[Jet Fixer]

The OAL is 19 and 11/16 inches. I do not know what the LB-74 and LB-76 refer to so I am not familiar with those references but I take your word for it. As for the bent quillion and muzzle ring, both of those are now fixed. This is the other stamp that I have questions on:
Attachment 116077

A European collectors forum puts the markings as possibly coming from Wakeda University which apparently was part of the schooling program for the Japanese and dates the bayonet to sometime prior to WW1. This would indicate that it was not part of a foreign military sale program.

My apologies. The WU is said to be Waseda University, not Wakeda University....