Dating fende guitars
These serial numbers were also either 5 or 6 digit numbers, depending on the month of production.
The numbers were once again located on the back of the headstock and would have been printed in Gold, Black or White (depending on the color of the guitar).
In this case it stands for the 3rd week of 1980 and was a Thursday.
Ignore all the "FRR" stamps you'll find on the neck base and in the neck pocket.
Toward the end of 1967, Baldwin took over the Gretsch Company.
“Made In USA” was added to the serial number stamp and the numbers were date coded in the same way that they had been between ’65 and ’67.
Some dealers simply go by the serial number, which you will discover can be far from accurate.
The Japanese-made Fenders do have some slight serial number differences (typically a "J" serial number prefix). I believe this was a mistake on Fender's part using the same prefix for both U. Below are some examples of letter prefixes used in recent serial number schemes.
Japanese Serial Numbers on Peghead Decal Note the lack of S, E, N series.
They are believed to just be some kind of quality check stamps.
Pot Codes: MMMYYWW Example: 1377818 - In 1977 found on the side of the pots, moved to the bottom (and unfortunately sometimes covered with solder) in 1978.