52 days ago I made this topic about a problem with my Waterman Carène: https://www.fountainpennetwork.com/forum/topic/305762-to-waterman-carene-owners I wrongly assumed it was ink, but pen2paper raised the issue of chemicals on a leather case. I had a leather case made a couple of years ago and have been keeping the pen into it since. Then Force also came to rescue – people said he would – and recommended polishing with a polish liquid. Ghost Plane gave the final touch by recommending I used a cotton ear, since I was worried about damaging other surfaces of the pen. I must confess that I was skeptic about it, and took me almost a month to try. I knew I would be disappointed if it didn't work. BUT IT DID! I want to take all FPNers who were so kind, helpful and helped making the topic alive, especially the aforementioned ones. FPN is really a terrific place to gather and know everything about fountain pens and everything related to them! http://www.clipartkid.com/images/9/happy-dance-clipart-best-jKcPlf-clipart.png THANK YOU!!! Marcelo