1972 FENDER PRECISION BASS
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In 1972 Fender introduced a black plastic gasket underneath the 4 bolt F Series neck plate.
Other 1972 Precision bass characteristics: Large "C" logo including four individual patent numbers and an ® mark applied under the finish, Fender name imprinted non-reverse clover tuners with no rivet and sometimes with an ® mark, string tree, curved rosewood fretboard or one piece maple neck with skunk stripe, both necks available with a fretless option, pearloid or black plastic dot fret markers, medium jumbo fret wire, neck butt date ink stamps etc., fifth hole on neck butt for hanging while painting, neck pocket paint stick etc., extra body hole in neck pocket for hanging while painting, tortoise shell/white/black/white vinyl pickguard or white/black/white vinyl pickguard on custom colors, metal foil ground shielding on pickguard horn underside, thumb rest under G string, date ink stamped grey bobbin pickups, ground shield under pickups, chrome pickup cover and bridge cover, flat top knobs, Stackpole potentiometers, round yellow or orange tone capacitor, plastic wiring, oval ground wire route underneath bridge, single groove bridge saddles (often with longer G string intonation screw), Switchcraft input jack, black tolex case with silver logo and orange interior.
Serial numbers ranged from roughly 328000 to 370000 although there are many overlapping exceptions. For more precise dating cross reference the serial number with the instrument's neck butt, pickup and pot codes.