Quasi-Grasshopper ?  

What a delightful chair! I...
What a delightful chair! I can see where you would call it a quasi-grasshopper. My first thoughts were Ralph Rapson or Bruno Mathsson, but google turned up no matching images. I ruled out Risom, because I haven't seen him use the bent ply method, but rather more traditional construction techniques....
I have actually seen an early example of the grasshopper that employs the use of webbing. I wonder if it could be an earlier experiment ... although it still reminds me more of Rapson.
I guess I am rambling, sorry I am of no real help. I'll keep looking. I have a feeling I have seen it before...

great chair
Alto or mattheson? but a great chair

Thank you
both. Any other inputs, before I alert the owner of this chair to your helpful thoughts?
SDR

Hi, this is my chair!
Hi all,
First, thanks to SDR for uploading the pics of this chair for me. I forgot to check here until now. I wanted to let everyone know I still have no idea what this chair is, but I did see another one in a book of the work of A. Quincy Brown in a house from 1949 (I can find the exact house if that would help). I was very excited to see that, as I would think it being from the late 40s makes it more interesting than a later Grasshopper "afterthought". I bought it from a very reputable dealer in Houston and she didn't know much about it except that she came across it with a lot of other furniture and had to have it. I believe the apholstery is original Gerard. The cushion buttons for easy removal and cleaning. It's a great chair. It would be even greater if I could call it by name!

A Quincy Jones
What was I thinking? I meant A Quincy Jones of course...

Pascoe
Your chair was part of Pascoe's range in 1950 - its illustrated in a German Art/Design magazine (Kunst und das Schone Heim) from 1950 but doesn't say who the designer was.