Bear in mind that the car's over 50 years old - maybe the fenders were replaced with used ones at some time.
A lot of folks assume a car is exactly as it left the factory, unaware that someone during the decades the car's existed added or changed something.
Back in the day, a lot of these cars were modified, options added or removed, etc.
Back then, very few of us thought 50 years ahead, but did tinker with stuff to personalize it; I did it myself on a few cars.
That's why the track/broadcast sheets are so important and ordering info is so important.