It's the same bass throughout the gallery. To state it simply, they look different because of different exposures and color balances. The more neutral white is likely the more accurate of all the pix.
On another note, it looks like it might have originally been sunburst or red (based on the crappy pix, it's hard to tell what paint color is poking through all the little chips in the white).
On yet another note, it's a $600 bass, absolute tops, and you'd have to really want it to pay that. It's an $800 bass tops in tip-top original shape, and this is a refin. If it's a home rattle can refin (which, by the look of it, it very well may be), it'd be a stretch even at $400 IMO. IIRC, they didn't come with free matching cases at the time; you had to buy a case separately. (In other words, the type of case that is "original" could be all over the map, so it's not really a factor in the value).