German Köller and Demag trench knifes - fake or real?

[kollektivmaschine]

Hello and thank you for the acceptance in this forum :-).

Normally I collect bayonets and equipment of world war one. But after i bought an original austrian trench knife, i wanted to have some more. And i found some on a french flea market by a military bayonet dealer. I bought the Köller and the Demag. But i'm not sure if they are real or fake. I asked alreay two longtime collectors i know, but the one collector sais the Köller ist fake and the Demag is original and the other one sais the Köller is definetely original and the Demag perhaps fake. But both only saw the pictures not the knifes for real. Difficult for me. What are the specialists here saying? If you need more or better pictures, no problem. These i have made quickly with my smartphone, but i have better cameras and possibilities if needed.

Thank you.

[rbminis]

Welcome to the forum!
IMO, the Köller appears to be correct, but missing the leather buffer. Any marks on the other side of the blade?
I am not a fan of the Demag.
Here is my Köller and Demag to compare.
Ralph.










The Demag, should also be stamped on the spine of the blade.

[kollektivmaschine]

I forgot this stamp on the Demag. But i can not recognize what it means.

[kollektivmaschine]

The Demag has the imperial proof mark, the big "17", the "R25" on the hand guard and an unknown mark on the other side of the hand guard, and the unknown mark (photo above) on the ricasso. That's all i can find.

[Chopperman]

I agree with Ralph about the Koller. I think it's a good one.
I do not know enough about Demags to be of any help there.

[kollektivmaschine]

Ah, yes, here is the imperial mark of the Köller knife on the other side of the blade. I forgot this picture.

[rbminis]

Ah, yes, here is the imperial mark of the Köller knife on the other side of the blade. I forgot this picture.

This knife has also been heavily cleaned as shown by the maker's mark, and the acceptance stamp.
Ralph.

[kollektivmaschine]

Ok, that helped me a lot. Thank you very much to all ...

[Sleepwalker]

Hi there,

DEMAG's crossguard is far too thick. Originals are significantly thinner. The press stud's mother also has an unusual shape.

Probably all of the manufacturer's marks are also missing. The acceptance on the root of the blade has lost nothing.


Regards

[AndyB]

Strange R25 marking on crossguard, similar opinion about the press button, on Koeller is imperial C proof typical for Solingen.