Florence Knoll lounge seating - real deal?  

Hi all,

First post here! I've reading and learning a lot on this forum, and now have a first questions myself.

I recently bought a Florence Knoll sofa through auction from an auction house, where it was advertised as a Knoll International sofa, although there was no stamps or other identification tags. The only tag or sticker that is showing is an inventory n° tag from Sony Europe, so I believe it was once part of Sony office furniture.

However, I took some measurements and they are slightly off, which concerned me, since the hammer price was for the real deal.

The Knoll International website shows following dimensions for the 3 seat sofa;

230cm W x 82cm D x 80cm H with seat height of 47cm  - where on my sofa W and D seem to be ok (maybe 1 or 2 cm, can be measurement error), but the height is only 75cm and seat hight 44cm.

So I was wondering;

- Did Knoll International produce these sofa ever in other dimensions?

- Is it possible it is a genuine Knoll International, but that it was reupholstered and during the process the back cushions were positioned lower?

- Are there any other elements I could check to determine if it's a genuine Knoll International?

The sofa seems to be very well made, sturdy steel frame, with solid wood inner frame. 

Picture attached.

Thanks a lot already for any feedback!