Gibson Solid Body Serial Numbers Gibson Serial numbers are located on the back of the headstock Years 1953-1961 Use the first number of the 5 or 6 digit serial number.
For example 55395 = 1955 920874 = 1959 1977 Forward - finally a standard serial number was used.
(For a glimpse at the sequential development, see Chronology of Gibson Banjos.) Following are details of construction features that occurred during this period: Model designations: The banjo models were given letter codings to indicate the type of stringing: TB referred to a tenor banjo, PB stood for plectrum banjo, GB described a guitar banjo, MB was applied to a mandolin banjo, UB denoted a ukulele banjo, and RB indicate a regular (5-string) banjo.
If your banjo has a wooden back, or resonator, you'll need to remove it to get to the factory order number.
removing the resonator is no more invasive than raising the hood on a car.
The peghead shape and color is an interesting story by itself.
Earl had let Jim Faulkner from Indianapolis put a new neck on his banjo.
The added mass of the fourth ply on tube-and plate rims contributed to the brightness and amplitude of these banjo models.