Hello everyone , (please excuse any mistakes i make around here , I'm new) , just need some help identifying a "jackson" bass. At first it looked like a Jackson Ex professional 90's bass or something , but there are different things that kinda deny it... I saw it in a shop (It's second hand, so the previous owner probably modified it) so I wanted to hear your thoughts about it before buying it (if). 1. First of all the volume and tone knobs look odd... 2. Doesn't say "jackson" on the pickups... 3. It has no codes or serial numbers whatsoever 4. On the head we have a Jackson logo , though there's nothing like "Professional Ex Jackson" written on it... just "jackson"... What do you guys think?