1977 FENDER JAZZ BASS
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During the year the control knobs changed from heptagonal to adding numbers and the word "volume" or "tone". The ground wire route underneath the bridge became round. Antigua finish was available. The rectangular plastic case with rust colored interior was introduced, along with black Fender silver logo vinyl cases with orange or rust interiors.
Other 1977 Jazz bass characteristics: Smaller headstock decal logo, including serial number beginning with an "S7" and applied under the finish (for more precise dating, cross reference the serial number with the instrument's neck butt stamp, pickup stamp and potentiometer codes), no "Offset Contour Body" decal, Schaller "open back" Fender name imprinted clover tuners with an ® mark and no rivet, bullet truss rod adjustment at headstock, rosewood fretboard or one piece maple neck with skunk stripe, pearloid block fret markers, white plastic neck binding, medium jumbo fret wire, fretless option, neck butt date etc. ink stamps, extra hole on neck butt for hanging while painting, 3 bolt F Series neck plate with tilt adjust and no serial number, neck pocket paint stick etc., extra body holes in neck pocket for hanging while painting, black/white/black/white/black vinyl pickguard or white/black/white vinyl pickguard, pickguard serial number sticker, thumb rest above E string, date ink stamped grey bobbin pickups, chrome pickup cover and bridge cover with foam rubber string mute, CTS potentiometers, ground shield under pots assembly, "blue drop" tone capacitor, plastic wiring, input jack, single groove bridge saddles.