Found a great thread on this chair from May 9, 2015 on Facebook in the group Mid Century Modern. I could not get a url/link, but here is the link to a page where you can click on the original Facebook conversation:
https://www.whodoyou.com/biz/971535/modtiques-southampton-township-nj
There are photos of stamps from two chairs in red that say "Made in Denmark" and a number followed by the letter W. The chairs with these stamps are by Arne Hovmand Olsen and Illum Wikkelso. I trolled the internet using google image search and did not find chairs by these designers that matched mine. This makes me think that there was a Danish furniture factory that did work for high-end designers, and that our chairs are good ones. But we KNEW that.
All the best
Julie
aka the Queen
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