Hi. I picked up a pair of used mahogany brown brogues off eBay. To my dismay upon receiving them I noticed the left shoe has light patchy streaks of discolouration just at the toe end. What could have possibly caused this? Previous water or sun light damage or salt stain? Is it possible to fix it at all? At the moment I'm hoping to polish over it with multiple layers of mahogany red shoe cream over time but not sure if with time the discolouration will blend in with enough polishes? Is the effort justified?