Given the modular nature of Fender's production techniques, a neck may have been produced in one year, placed in a warehouse and remained in stock for a period of time, and then subsequently paired with a body to create a complete guitar in the following year.
They were stamped on the back vibrato cover plate (early '50s Strats), and on the bridge plate between the pickup and the saddles on some Telecasters.
Perhaps the best way to date the Vintage series is to carefully remove the necek and check the bottom of the neck for a production date.
In March 1985, CBS sold Fender to a group of private investors.
Japanese Serial Numbers on Peghead Decal Note the lack of S, E, N series.
instrument production history, production dates have been applied to various components.