Dating fender bass cases
A number of other companies also began manufacturing bass guitars during the 1950s: Kay in 1952, Hofner and Danelectro in 1956, Rickenbacker in 1957 and Burns/Supersound in 1958.
1956 saw the appearance at the German trade fair "Musikmesse Frankfurt" of the distinctive Höfner 500/1 violin bass made using violin construction techniques by Walter Höfner, a second generation violin luthier.
The earliest production basses had a 'stacked' volume and tone control for each pickup.
Fender was the founder of Fender Electric Instrument Manufacturing Company, which made popular brands of electric guitars, basses and amplifiers.
Fender's Fender Precision Bass, which began production in October 1951, became a widely copied industry standard for the instrument.
The four-string bass, by far the most common, is usually tuned the same as the double bass, The bass guitar is a transposing instrument, as it is notated in bass clef an octave higher than it sounds.
The electric bass guitar has pickups and needs to be connected to an amplifier and speaker, to make a sound loud enough to compete with other instruments.