not Knoll
I asked this same question on here awhile ago. I dont think there has ever been any evidence this was a Knoll piece except for the attribution on the furnishmevintage site. That is questionable at best, and I've never seen one with any Knoll markings. A lot of people are selling them as Knoll though. I'm going to go with Founders as well. This wall unit is remarkably similar.
http://www.1stdibs.com/furniture/storage-case-pieces/cabinets/outstandin...
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