The neck date simply refers to the date that the neck was produced.
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.
All that really matters is that this is a great guitar with its own unique voice.
In 1990, it was retired due to many replacements of frets, though he continued to play it occasionally.
In 1992, the Stevie Ray Vaughan Stratocaster was released, based on the specifications of Number One.
The Fender Stevie Ray Vaughan Stratocaster Electric Guitar is made for Texas Blues - Stevie style - with the same features as Stevie's number one Strat.
Unique features include a special oval neck, pao ferro fingerboard with 21 jumbo frets, three Texas Special single-coil pickups, gold-plated vintage hardware with Stevie's unique left-handed synchronized tremolo, and special engraved pickguard.