The following description is taken from the 1969 Fender lovin' care catalogue
All bassists appreciate the Fender 5-String Bass design for its increased range and fast action. he added fifth string is a high C, allowing faster technique with the lower frets and five additional notes at the top.
A single split pickup positioned for maximum string response may be adjusted for any custom string action. Separate volume and tone controls enable the player to achieve a wide range of settings and are positioned for easy reach. The slim ample neck with rosewood fingerboard has the adjustable truss-rod.
Individually adjustable bridges may be set for perfect string intonation and comfortable low playing action. "Off-set" waist design contributes to playing ease and comfort of the player. It places the arm in a natural position over the strings which allows more flexible playing technique. The 5-String Bass is finished in Shaded Sunburst or selected custom colors.