Warm, Fat and Round, The Quintessential Bottom of The Fender Precision Bass

Any self-respecting, you call yourself a bass player, bass player should have one in their arsenal. Any self-respecting collector already does.
Designed by Leo Fender in 1951, it was the first mass produced electric bass guitar.
The Precision, or P-bass for short, was named for the addition of frets for precision as opposed to the fretless stand-up.
It was created as an answer for the physically tubby, tuff to carry and stay-in-tune
double bass and it helped fill the need for increasingly louder, bigger bands that were already powered by the electric guitar.
The bass, now able to perform a more dominant role in bands, propelled itself along with drums, to be a more driving rhythm section. Providing not only root and counterpoint melodies but anchoring the bottom as well.



historical info from Wikipedia
1966 snapshot of Mr. Entwhistle at CBS Studios from thewho.net
77 Fender P from andysummers.com