I know this is the C&R section, but I figure it fits, and the best knowledge is in bere for it. No idea what this thing is. I'm guessing WW1 Mauser bayonet, but I have no clue the Make, model, or origin. Admittedly I will be selling it so I'm looking for a fair price that it should go for. Bought it years ago for $30... thought it was wort at least that. The Scabbard is blued metal with "F1" on the belt attachment piece. Most of it is leather. The blades pommel has some symbols and "90 00" on it
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I think it's Brazilian.
I have one and they can still be had or last time I looked they could be.
Fits on my 1909.
Eta: 1908 rifle.

Not a German 98 bayonet.

No most all German bayonet s don't have a muzzle ring.
This is an export made bayonet for the 1908 Brazilian rifle.
My Brazilian 1908 is a large ring mostly 98 rifle in 7x57.
My example was made by weyersberg.