I don't actually have the original boxing, but I do have the box for the docs/software kit, and other than the boxing for the system, I've got it all. There is even an EnergyStar sticker inside the box for the 520's docs kit.

The other 520 from the school also has its CD/Quicktime/PhotoCD/2x sticker, but the edges were starting to peel a bit more. The system isn't even very yellowed, it wasn't in a room where it ever got daylight, plus the headphone jack out front is still intact, unlike the 575 I had so long ago.