I went to go look at a vintage HM Eames lounge and ottoman today, it was pretty old, price as one would expect. The wood and legs were nice and in good condition, stickers and stuff intact, but the leather just disgusted me and I was ready to leave after looking at it once. That must be the worst upholstery leather I've ever seen in my life, it was paper-y and from what I know of leather, it would have cracked into pieces the minute someone sat on it.
Honestly, I'm thinking about going back to this store with Chinese fakes and checking out a $1000 replica in the highest of the three premium leather grades they have, it's not aniline leather but close to it in feel and look. What use is a chair like that if you can't sit in it without worrying you'll take the upholstery off it with your back?