The chart posted (as I noted) has no date to verify when it was produced so it's being from '96 is only a speculation based on the page it was printed on in the book. Until further light is shed that chart could have been made earlier.
However, the chip is interesting. (as in, when did it occur) A respray is one way a chip like that could be all the same colour, but it could have still been from the factory. One of the Fender/Kubicki Factors I owned was factory finished black (w/body decal & clear coat) and it was originally red (underneath). Other than a small finish repair I did on it that uncovered that - it looked black everywhere. (the control cavity, neck pocket etc) Much of what I see in icebox's detail pic (in the creases) is dried buffing paste residue - very common regardless of it being from the factory. These Fender Factors and J+'s etc were nearing boutique bass quality - but this was Fender and not Sadowsky or Lull. (a factory vs a shop) and instruments were cranked out regardless of QC.
Another detail icebox can clearify is the (perceived) grey areas - the largest one at the lower lip and another smaller one below the chip area. Looks to be shielding paint which Kubicki Factors had and was brought into play on these Fender basses. So if this is confirmed, and judging by how thin the purple finish is over it - this tells us something. The way to find out would be to scratch the purple off of the inside of the chip area. It could be done by flat-blading an exacta-knife on the inside edge. Will it uncover a different colour? Will it uncover wood? My guess is as the shielding paint was as thick as that chip - originally the shielding paint got chipped there (how is anyone's guess) and it was sprayed over with the purple. Snatching off the purple there will uncover something. As the inside lip already has minor chips, it will not affect the value of the bass.
And lastly - if
@icebox can take the neck off it may answer all of these questions. FTR, doing so is not mysterious or detrimental if you are not used to doing such. Inspect the neck joint - even take a detail pic of it for reference putting it back on. (only mention this because sometimes a slight shift of the neck in the pocket one way or the other is needed to align the strings - very normal)