Risom style Chair ID  

I picked up this chair a while back and have not been able to find anything like it on the Internet. I was wondering if anyone might have some insights about its design. When I got it, the foam and upholstery was totally shot, so I had it recovered in a vintage Knoll fabric. To me, has a Risom feel to it, but I know that's its not one of his pieces. It's a great piece and I would like to know more about it, if possible. Thoughts? Any ideas are greatly appreciated. I am located in Canada, if that helps.
http://www.flickr.com/photos/73487033@N07/sets/72157629905980087/
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