1st gen Camaros were final assembled using two production docs: Body Broadcast Copy [BBC] and Chassis Broadcast Copy [CBC]. Either was attached to various sub-assemblies as the car moved through the assembly process, then discarded. A copy of each was in the car when completed, to be discarded after the 'de-papering' step. On rare occasion, they were overlooked and sometimes retained by the selling dealer.
Van Nuys built cars often had a BBC stuck to the fuel tank. Norwood built cars virtually never have BCs.
Your car was on ebay recently, has a 10 bolt rear axle. SS cars almost all have 12 bolt rear axles.