We have a few artifacts made by TSL which uses this "TSL special" leather (including our favorite Pen Holder Clip). Their leather feels incredible in hands so naturally, I tend to pick it up pretty often when a notebook is wrapped in this cover. You can definitely see a lot of my personal imprints from natural usages like the darkened area where notebook cover folds in half, as well as some extra customization including wabi-sabi, embossed stamp and stenciled letter "w" on the back cover.
I hope you enjoy witnessing how the leather ages and wears in if you have one of their natural nude leather artifacts.
-wakako
p.s you can see all of their leather covers in different sizes here!