Scandinavian sofa and chair ID, please.  

Afrormosia armrests.

Ah, thanks, leif. I never think of that.

What are tell-tale signs, if I might ask? I would like to get better at spotting the difference between the two.

Here are some more pictures of underneath the dust cover, if this helps anybody. I've been told the thread-ins are similar to Kurt Ostervig? Beats me... certainly fine never knowing, but it's always fun to try. These are taken of the underside of the chair.

Square drive screw heads and zig-zag springs and fabric loops! Oh my!
It doesn't look much Scandinavian from the bottom.
I've seen zig zag springs on Dux (Ljungs Møbelindustrier) pieces. But that is about it. I have a recliner, in terrible condition, awaiting restoration, with Afrormosia arms and legs and Zig Zag springs. But no square drive screws. And no idea who made it either. I am not even sure it is scandinavian.
But if you can find a company that does upholstery this way, you have probably found its maker.
Didn't the Canadians use square drive screws long before the rest of the world?

I was talking with somebody about it, an yeah, that was sorta my thought? Said it looked almost American from the bottom. Canadian is the next place to look. Thanks.

Can you take another photo of the hand rests, sharp, close, and square on? They really look like Afrormosia, but admittedly the angle is not ideal, and some part of wood identification, especially through photos, relies on expectation to winnow the field. If it were not Afrormosia, it could be a lot easier to reconcile the characteristics.

This is all I can offer for now. I'll take more pictures next chance I'm at the storage unit.

From left to right, the armrests of the chair and then sofa. Last picture with a flash. Hope these are close up enough for you, leif.

Yeah. It is Afrormosia. I don't think I understand the juxtaposition of Afrormosia, which I've only ever seen in European pieces, and the construction, which looks very American.
Obviously somewhere those two elements converge. I just can't tell you where that is.
And then there are the square drive screws to make it even more odd...

Thanks for the clarification and input, leif. I've been trying to read a bit about the differences in appearance between the two, and I'm starting to gather that it's the color, and specifically the color within the grain a bit? More of a ribbon look, or? Still fairly new to the process.

Check out pics of teak and afrormosia on this site:
http://www.hobbithouseinc.com/personal/woodpics/
To my eye, the biggest difference, or at least the easiest to ID at a quick glance, is in the end grain.

I find the two as different as night and day. So I am not the person to help here. Look at the pattern the grain makes, the texture.
The two are really only vaguely similar at a far distance when the Afrormosia has not seen sunlight. And this is because the initial color of Afrormosia is near the color of teak. Your sofa has seen very little light during its life, or the wood would be dark. Or perhaps it has been heavily sanded.