A question about Knoll credenzas  

Hi artsnot.
I have the larger version of the Knoll credenza, and I remember noticing particle board used in/on it, also. But I can't seem to figure out where it is on the piece. The sliding door's and sides/top look not to be veneered, the appear to be solid. The interior and the pull out drawers are as you described (light oak). But I could swear that I noticed some part of it made out of particle board. I'll keep looking...but can you give me a hint as to where to look?
Best,
Mark

I found it.
The pull out drawers have particle board incorporated into them. Ill take a snappy and (sorry) edit this post.
Best,
Mark
edit to add a snappy. The particle board is in the drawer side-slots.

Oy vey
If the builder will route a drawer slot into particle board, then there nothing holy left in this world. Particle board may alurk inside every surface!

I'll bet that you are correct, Leif.
I was a bit surprised to find that a Knoll piece would be constructed of such a common material. And my piece (as told by the auctioneer) was built in the mid 1970's. I'm sure that there is more to be found under the surface of the lovely finish. I also looked under my George Nelson swag side table, and found that it had the same nasty particle board, so Herman Miller must use the same method. Same with my Roche Bobois credenza. Oh well. The furniture building world has gone to hell.
Best,
Old Mark

The box
The box is made of particleboard with walnut veneer, which is apparent when looking at the back of the piece. The edges of the the box are exposed at the back. Thanks for your input.

?
Mine is finished on the backside, no evidence of nasty particle board. And the panels don't look to be veneered, but solid wood. I could be wrong.
Perhaps mine is a fake? Regardless, it's all good.
Best,
Mark

correction.
it is veneered. My eyeballs are getting old.
Best,
Mark