Well I went junk hunting today at my favorite thrift store and found a chair almost identical to the Charles Pollack for Knoll office chair, with arms. It say's that "All Steel Inc." is the manufacturer on the tag. It's in amazing condition, like it's barely ever been used, and only cost 5 bucks so I am not out anything.... just curious to know if "All Steel INC." is known for reproductions with this chair?