Hi, hopefully my question is appropriate here. I purchased a used Ligne Roset white leather sectional. It's about 8 years old and the areas of heaviest used are noticeably discolored. I'd like to do what I can to "clean" these areas so it appears closer to what it looked like new. I've attached to cross-section photos from the pillow, which hopefully be enough information to ID the type of leather involved. The other photos show the contrast between a barely-used, matching pillow and the seating areas. Any assistance is greatly appreciated, thanks!