Dating fender pickups
Note that if you're looking at a Fender Telecaster pickup that doesn't have any flat work at all, you've likely stumbled on to a very unique and valuable \"Pre CBS\" pickup.With the cover still off, inspect the winding of the wire around the pickup.
Gray flat work is an indication that the pickup was built sometime between March 1964 and the latter half of 1971.Black flat work indicates that the pickup was built either before March 1964 or after 1971.To determine which range your pickup might fall under, scope the pickup to see if it is warped.(nothing to id them as neck/middle/bridge though) I have not put them on my multi meter yet. The Fender serial number decoder currently supports all documented MIA, MIJ, MIM, MIK and MII formats with the exception of Custom Shop, Relic and Reissue instruments.
Connect the multimeter probes to the end of the leads on the pickup.