In 1976, Fender moved the placement of their serial numbers from the neck plate to the headstock face, with the number as a part of the headstock decal. Along with the repositioning of the serial number, Fender introduced an entirely new serialization system. The first serial numbers in this system featured a “76” prefix followed by 5 digits, with the two digits in the prefix indicating the last two digits of the year in which the guitar was produced.
However, after only a few months of using this system, Fender changed the prefix to a letter which indicated the decade of manufacture, followed by a number indicating the last digit of the year in which the guitar was manufactured, followed by another 5 digits.
- S = 1970s (Seventy)
- E = 1980s (Eighty)
For example: The serial number of S895221 on a Stratocaster can be deciphered as: “S” = 1970s, “8” = 1978, 5221 = identification of the guitar.
Notable exceptions:
In early 1985, the Fender brand was sold by CBS and production moved from the Fullerton factory to Corona shortly after the buyout. With the impending sale, no E5 decals were ordered in 1984. Due to a surplus of remaining E4 decals and a slow ramping up of production at the new Corona plant, Fender used E4 decals until 1988 when the supply was finally used up. As a result, no E5, E6, or E7 serial numbers exist for 1985, 1986, and 1987.