Barcelona: is this an original Knoll Barcelona chair?  

It is not Knoll.
Nice chair, however.

hello Mark, thanks for the...
hello Mark, thanks for the clear statement! If there is a reason (or many reasons) to say that it is not a genuine Knoll chair I'd like to know more about.. Please can you do it? Other forum members: don't be shy..

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Aforementioned wrong screws.
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the Knoll chair has the same seam!
concerning the seam in the metal frame: I have another Knoll original Barcelona chair (white leather, signed MVDRohe & KnollStudio), and it does have an identical seam in the metal frame. So..

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what?
no snappies?
I feel an empty place in my soul
However, I find this discussion interesting. Twists and turns...

"WWMD?"
Certainly not...
"WWMD?"
Certainly not insert a piece of plywood on top of the split seam frame.

just to point out the obvious
Detail #1 the first one has those seams
Detail #2 mark's do not and mark says his knoll dealer says "not one of ours"
Detail #3 your OTHER chair has these seams
Something's gotta give methinks

facts straight & disturbing questions
summing up: my personal white leather Knoll chair has those seams on the frame, on both ends. The same frame bears the engraved Mies and Knoll engraved logo and signature (see image), so my white leather chair is 100% orginal and it HAS the seams on frame.
To go back to the content of the initial thread: can the black leather chair be a Knoll chair, considering that it has those infamous seams which are common to all original Knoll Barcelona chairs (or at least to those produced in the 90's, like my white leather chair)? Mark, did you forward images of the BLACK leather chair to your Knoll dealer? Or just images of my WHITE chair?

Hello Marchenoir.
The photo that I sent to the Miami Knoll Studio was of the op's Black chair. I am baffled by the seams in your frame... as my Knoll catalog states; Premium grade 304 bar stock stainless steel. Single piece construction ensures long term durability. Frame hand-ground and hand-buffed to mirror finish. Upholstery straps attached with solid stainless steel screw.
I flipped over one of my ottoman's to show what my older model frame is like. I will also flip over a chair, if you'd like. Perhaps I am mis-imformed.
Best,
Mark

Knoll & Mies mark
Knoll & Mies mark

Dearest Marchenoir,
Where did you purchase your Barcelona chair?
just curious,
(edited to correct the spelling of Marchenoir).