^^Yes I have the same keychain...and the bookmark I'm talking about is in the same style !
The Pfer who revealed had bought it with several other items at H (maybe in the UK)...unfortunately I can't remember more ...
Thank you so much for the pics Mistikat !
It is the bookmark I'm looking for : in my memories, the Pfer who posted the pics said it was Barenia...but even if it's lambskin I it.
I'm going to show it to my SA ...and now the hunt begins ... Again thank you Ladies for all your help !