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.
At the Stratocasters from the early fifties the serial numbers were stamped on the back vibrato cover.
As a result of this mistake, you will be able to get a guitar with a serial number N9 that was built in 1990.
On the inside wall of your amp cabinet, there may be a tube location sticker which shows the tube layout, model number, production location etc..
Although it is not be traced back directly to the serial numbers.
CBS continued to make the guitars using the existing tools, parts, and the numbering system.
As you can see by the overlap of numbers and years, the reference to the actual date of manufacture is rather vague.