did this happen to your dread pirate roberts sword?

question to anyone who has the dread pirate roberts replica sword. did yall keep it in the scabbard, and then the leather( or what ever it is) on the top inside of the scabbard leave some stains on your sword? if it did happen. do you know how to get those stains off? and did you find a solution to keep displaying in the scabbard without getting stained?
here are pics of the stains on each side. i know they're kinda hard to see. sorry