This was discussed in the past on a thread, but I wanted to start a thread on the appearances of black bottom pickups in 73 era P basses. I've seen a listing on eBay for them (73's), and I now have a 73 P on the way with original black bottom pickups (thanks TheBrian ). With several known occurrences, I am curious to why these exist?? Could a box of pickups have surfaced in 73 at Fender that were made pre gray bobbin (pre 64)?. Here is an old thread: http://www.talkbass.com/forum/f8/who-can-help-decipher-fender-neck-stamp-450867/ In the interest of digging deeper into the history of the P, I think it should be documented and clarified! Plus, I'm bored at work and am anxiously awaiting Thursday, when my bass arrives.