Unknown blade, fake or not?

[AWE]

Hello friends, I am interested in your expert opinion on the knife in the picture; may it be something that really existed back then or is it just a modern thing, not even resembling an authentic weapon?

Thank you for any input!

[Sensei]

I would say that it's a fantasy item.

[AWE]

Thank you Tobias, I was thinking the same, it's not even a fake as it's not even a match to anything I can think of, from the said era...

[Frogprince]

It's 6th Reich, and for letting air out of ballons. Popular on the Antarctic Front. Best Regards, Fred

[Anderson]

That ring was so the knife could be spun around the index finger while giving the Nazi salute.