Help ID sculptural dining chair.  

Or if anyone has a site that would be a good place to search?

Looks more like Harry Ostergaard...

Thanks modernfamilie! Still searching... does anyone know the type of joinery used on the back rest? Would that be called a finger joint?

It looks very Scandinavian to me. Take a sharp close up of the grain, and I can tell you if it is Afrormosia or Walnut. That would strongly suggest an origin.

Here are some close ups of the grain:

That is Afrormosia. I've never seen it used in an American piece. Only Scandinavian/European pieces.
I feel like your guess of H.W. Klein (for Bramin) was a plausible one. Bramin produced some pieces in solid Afrormosia, e.g. Many Reenskaug rockers. And the company also had a very extensive line, some pieces of which are very rare, and I highly doubt every chair they produced is actually known. Bramin also was not so good about marking pieces in my experience. And the design looks plausibly like H.W. Klein.
And of course there are other Danish companies who might have made the chair, and occasionally solid Afrormosia pieces can indicate a Norwegian or Swedish origin.