Recently bought this old dinosaur with 89k original miles, and it came with the original sticker. Something that is baffling my mind is that the sticker has what is called the "Royal Prestige Luxury Package (SE)". I know that there aren't any SE or letters, just limited or base for either wagon or sedan. Can't find it on any car website, does anybody know what this means?

 

That could be a service package, not a trim package.