Most specifications for the Fender guitars are hardly changed.
Although there have been periods in which major changes occurred as the acquisition of Fender by CBS, and the transition from CBS Fender to the current owner (Fender Musical Instruments Corporation), most models are in general not changed.
3,143,028 the patent granted in August 1964 for Fender's adjustable neck construction. (Used since 1957 to the Precision Bass) The DES is the serial number. The serial number for these three models can be found at the bridge plate and is used until about early 1954. Until 1955, the serial number is applied to the bridge plate.
The serial numbers in principle chronological, but as already mentioned, as a result of Fender's production, there are a several serial numbers that overlap.
The only way to try to figure out the date is to remove the neck from the body and check the butt end of the heel of the neck.
The next table shows the most common Fender serial numbers schemes from 1976 to the present.
Here is the S first introduced as a prefix to the serial numbers. The E stands for the decade of the eighties, and was introduced in 1979.