Bri, this is indeed interesting! But, impossible to corroborate. Impossible. James had three Ps, the black '57, the '61 (as this is), and the Funk Machine, which was a '65 or '66. If this bass was James', where's the worn off chrome and indentations in the pickup cover? His middle and fourth fingers wore divots into those covers ;-) And, the cracked pickguard tip is a malady found on probably 7 of 10 of all vintage Fenders. Another thought is the timing of the auction. Only one person could have possibly given insight, James III, and sadly, he's now no longer here.