I pulled a couple of fender decals from my pile of decals for discussion purposes and scanned them. What do you look for? The top one is from Osborn Reproductions (stamped on the back), the next is an official Ford Motor Company product (many logos on the back), the third I don't know where it's from. I've had these for at least ten years. Note the differences in the 2nd and third, then look at the photo that Jeff posted of an original above.
The questions are: different years between 1 and 2, and 3 and Jeff's?
Different "star" logo in front of AUTOLITE.
Different fonts.
Different backgrounds, 1 and 2 are dull aluminum, no 3 is shiny.
I also put two of the grove box tire pressure decals on the scanner but the non-Ford one was so shiny it reflected the scanner's light and turned black.
Jim