The fades come of long, long time exposure to sunlight most always I would think........
This one might have been exposed from the side with some kind of covering over the top so the light didn't strike straight down....................against a bright wall, under an overhang perhaps ?
Best Guess............
![Cool 8)](https://weberkettleclub.com/forums/Smileys/default/cool.gif)
Love them Fades !!!!!!