Hello there! I own a new pen from the "Originals of their time 1931" Yellow Gold series. I decided to sell it via ebay, and after examining the pen I've found out a problem (or not a problem?) The thing is that the plastic (resin?) part of the barrel (on top of the pen) has a matt brown color. But as far as I know, this part shall be black. It looks like the color faded with time. Photos attached. I have several questions: 1) Is this case common for this Pelikan series?2) Can this issue be considered as a problem? I mean does it influence the price?3) Is there any way to fix it? Many thanks!