6 teak Chairs - Danish ID ?  

No one? :o)
No one? :o)

No clue
But the cut-out is kind of neat.

No clue
I think that back design (minus the tooth mark) is the signature of Peter Hvidt. I believe he gets that honor on account of his chair being the first to showcase a new ability to make a compound curve in plywood. (Corrections here anyone?).
And since this isn't Peter Hvidt, the conclusion writes itself. I just don't know the name to conclude it with.
Hopefully that information helps.

Ostervig
Look up kurt ostervig

Thank you...Ostervig that´s i...
Thank you...Ostervig that´s it