dts396- First of all WELCOME to the forum!
I would HIGHLY recommend that you post pics. of the item that you are asking about. It is VERY difficult to be at all helpful to you without any pics. They are worth a thousand words afterall!
Now assuming we are talking about a 1st model luft dagger, I am most concerned about the chin links which should be circular. But perhaps the chain has been replaced. I think it is very rare to find a 1st luft with an unmarked blade, and the hole in the grip for the grip wire is a bad sign in my opinion as well...
I think you shoud PASS on that one, but to be 100% sure as to what you've got, PLEASE post pics.
Good hunting,
Johnny
