there is a reason for it missing
I recently removed the upper back rest on my selig knock-off...used it to make an ottoman for the chair.
I'll probably get some bad responce for doing so, however it was not a real 670 lounge and sure does look better than the orig. high back look of the 670...hmm makes me wonder if Charles ever conceived the idea of a low back version?
If you need any help, please contact us at – info@designaddict.com