Dating a squier bass
1954-1959: Same as above, only the format is M-YY, leaving out the day. March 1962 to 1965: Dark blue or red ink stamps below the truss rod adjustment at the neck butt. The “XX” does not refer to the day; it is a code for the neck type (e.g. The “W” stands for neck width: “A” is the narrower, “B” is normal width, and “C” wider and “D”, though rarely seen, is the widest.First half of 1959: No markings for a period after a customer complained about an obscenity written on the neck butt. 1966: the model number (the number stamped on the neck before the month) change (for example, “13”=Stratocaster).The following three digits, here 384, could be a batch or lot number, or i could be the count for how many of this one instrument that was made within the month.Since Fender could probably produce more than 999 of any one type instrument in a month, it is more likely a batch or lot number.Determining the date can also be important from a collector’s perspective, since the pre-1966 vintage Fender guitars are generally considered the most valuable.
The locations of the serial numbers and dates change from model to model and in some cases they have simply been omitted.
From the production of the first solidbody Fender guitars and until 1976, Fender tagged a production date at the butt of the detachable neck of their guitars.
Only about half the guitars still carry any intelligible information here.
1972: A new eight-digit neck stamp was introduced colored either green or red. From 1972 to around March 1973, this new system was used simultaneously with the previous “XX MMM-YY W”.
Again, either stamp can occur on instruments from this era.