2,968,204 for the single coil pickup patent awarded in 1961 under other for Jaguar, Stratocaster, Duosonic.
At the top of the neck plate, at the front or at the back of the head or on the cover plate of the vibrato.
Much of the spacing in this presentation is not as intended.
in order that the customer should know which part faced upwards.
As you can see by the overlap of numbers and years, the reference to the actual date of manufacture is rather vague.
In 1990, the N came as a prefix to the numbers, which stands for the nineties. Deluxe Series have the same standard but with the addition of a D for the Z, eg. Also here some overlap of numbers, prefixes and year.