1979 RICKENBACKER 4000 BASS
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1979 Ric 4000 features: Cresting wave shaped headstock, Kluson riveted tuners with phillips head screws, black plastic bushings and black plastic shims, plastic truss rod cover, 20 frets, dot fret markers, no binding, black or white pickguard, four pole pickup including cover and chrome surround, two black heptagonal knobs with silver tops and words, chrome bridge assembly including mutes, mono input jack, black case with blue interior.
The letters on the chrome input jack plate determine the year and month of production. The digits indicate the number of production. Some examples of 1979 Rickenbacker serial numbers are:
| SA 38x | 1979 January |
| SB 64x | 1979 February |
| SC 147x | 1979 March |
| SD xxxx | 1979 April |
| SE 261x | 1979 May |
| SF xxxx | 1979 June |
| SG 340x | 1979 July |
| SH 422x | 1979 August |
| SI xxxx | 1979 September |
| SJ x | 1979 October |
| SK 504x | 1979 November |
| SL xxxx | 1979 December |