Yes, the fin is atrocious even for Gibson standards. If it came like that out of the factory, it certainly was a second. The two serial numbers thing is unheard of for Gibson, I rule out that they would do this on anything offcial. Those might or might not be the original Barts of a Deluxe sans the Bartolini name embossed or black versions of the chrome TB Plus guitar size humbuckers from the Standard version. I believe the Special line ran out in 1998 (the Deluxe line already before that, the Standard line was carried into the early millenium), so they might have changed the last ones a little.
Or it's all after market!