Unidentified Bayonet Japanese?

[twines]

I have and interesting bayonet that is close to a Japanese Type 30 and Model 1907 but not quite. I made up the chart from data in Kiesling’s Bayonets of the World and my own measurements on the unidentified bayonet Anyone out there with some suggestion will be greatly appreciated. Check out the pictures and let me know what you think.
Characteristic Model 1907 Type 30 Unidentified
O/A Length 510 mm 510 mm 512.5 mm
Blade Length 400 mm 400 mm 385 mm
Bayonet Width 23.5 mm 24 mm 22.8 mm
Thickness 7 mm 7 mm 5.4 mm
Muzzle ring 14 mm 14 mm 15.1 mm

Doesn't seem to matter what I do I can't get this chart to come out clear. It is suppose to be 3 columns. If you don't go cross eyed the last set of data is the unidentified bayonet. Email and I will attach a clear chart if you would like to see it.

[ph3s]

a training Japanese bayonet for arisaka rifle, measurements could vary:
overall 455 - 510 mm
Blade 342 - 400 mm

very used mostly for drilling purpose