Hey everyone, longtime lurker on these forums. I've got a new acquisition off Craigslist and wanted to see if it was authentic. I can't find any reason to believe they're not so far but wanted a second opinion. Measurements are spot on as it's 29-3/4" to the top of the back, 17-3/4" high to the center of the front edge of the seat. 21" width from front corner to front corner. 20 horizontal rods on top of 10 vertical (front to back). Front edge has rods on top of the perimeter and underneath on all other sides. Ends of rods are all tapered/mitered.
I've got some detail photos also of the connections. Welds are very clean and neat. Thanks for your input! 
<img class="wpforo-defau
looks correct
I have had a few hundred of these over the past few years and your chair looks correct to me.
I currently have a set in chrome like yours but they have a stick on Knoll label on the back cross brace of the base, they are all marked Knoll, Made in France. None of the others I have ever had were marked on the frame, they all had the Knoll label on the underside of the seat pad however. I have had them with the double wire on the edge, thinner wire on the whole chair and thicker wire on the chair, reinforced wire at the bend, etc.. Look for breaks in the wires where they are attached to the bracket that bolts to the base, older chairs always seem to break right there.
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