In 1963, a mixer control was added. Instruments were inconsistently produced with and without f-holes.

The earliest models in 1958 may only have two knobs and a single piece pickguard. In 1961, a thinner, 1.5 in. body replaced the 2 in. body. In 1963, a fifth knob (mixer control) was added and an R tailpiece was introduced. In 1969, a 24-fret fingerboard was extended over they body and some models may have slanted frets.

Originally, this model was released with an external power supply box. This model is nicknamed the Light Show.

This model was called the 335 from 1958 to 1977 and the 330VB from 1985 to 1997.

The earliest models in 1958 may only have two knobs and a single piece pickguard. In 1961, a thinner, 1.5 in. body replaced the 2 in. body. In 1963, a fifth knob (mixer control) was added and an R tailpiece was introduced. In 1969, a 24-fret fingerboard was extended over the body and some models may have slanted frets.

This model was called the 345 from 1958 to 1974 and the 340VB from 1985 to 1997.

This model was the 350 Liverpool Plus from 1983 to 1985 and the 350VB from 1985 until 1997.

The above description is referred to as the Old Style which ran from 1958 to 1964, and may have still been avaialble through 1968. In 1964, the 360 New Style was released and featured an unbound rounded top, bound soundhole and checkered body binding which ran from 1964 to circa 1990. In the early 1960s, round control knobs and bi-level pickguards began replacing original parts/designs. In 1960, stereo output became optional. In 1963, a small fifth knob (mixer control) was added. In 1969, a 24-fret fingerboard was extended over the body. In the early 1970s, checkered binding was disc. The current mfg. 360 has no body binding or slash f-hole binding.

Both the old and new style models were produced between 1964 and 1968. This model has also been called the 360/12B WB and the 360/12WB. The current model 360/12 has no body binding or slash f-hole binding. George Harrison played a 360/12 in the early 1960s.

In 1984, this model was reintroduced as the 360 VB featuring Old Style body, high gain pickups and R-style tailpiece. In 1991, this model was renamed the 360 WB.

The above description is referred to as the Old Style which ran from 1958 to 1964, and may have still been avaialble through 1968. In 1964, the 370 New Style was released and featured an unbound rounded top, bound soundhole and checkered body binding which ran from 1964 to circa 1990. In the early 1960s, round control knobs and bi-level pickguards began replacing original parts/designs. In 1960, stereo output became optional. In 1963, a small fifth knob (mixer control) was added. In 1969, a 24-fret fingerboard was extended over the body. In the early 1970s, checkered binding was disc.

This model was not a standard production (not factory cataloged) model until the early 1980s, however it was available by special order.