Just read the history (above) of Fender Japan and that is easy to understand! They will have "EXTRAD — Custom Made" written on the back of the headstock or by the serial number.
On some guitars there is found an "EX" on the part numbers located on the neck socket of the body or the heal of the neck.
That instrument was the Precision Bass®, a name that would not only become synonymous with rock ‘n’ roll, but also shape its very being.
As time went on, we created new instruments to cater to a new, evolving type of musician: the electric bassist.
The NECK pickup is a SEYMOUR DUNCAN 57 VINTAGE STAGGERED (SSL-1) which is an exact replica of the original Alnico V Stratocaster pickups used in the 57 Strats.
It has the same type of magnet wire that was used, and the same number of coil windings.
until the new factory was built in Corona, California.
They took a 62 Tele bound body, plus the added touch of a vintage Stratocaster sound with a Strat Pickup in the neck position, along with the extra touch of the famous "out-of-phase" Strat sound by using some tricky custom wiring—thus you have a JD Tele! Fender’s Custom Shop started manufacturing the Jerry Donahue Custom Shop Tele (some going at a pricy ,200! Later the Fender’s CIJ factory came out with a Jerry Donahue Signature Model.The JV and SQ guitars, as well as some of the E series, had USA parts (mostly pickups, switches, and potentiometers) that were shipped over to Japan to help speed up production while the new USA plant was being set up in Corona, California.The early series are the most popular for collectors.Also, both Made in Japan and The Japanese serial number can be confusing too.For instance, many of the MIJ/CIJ Telecasters have the serial number on the bridge and they start with an "A".This DOES NOT mean you have an EXTRAD but simply that you have a guitar that was meant to be EXPORTED!(See above) any of the mid-1980s models will also have FENDER stamped on the neck plate.Yet if you take the neck off they can be 1994-1997! They are dead on replicas of the original vintage Fenders, shot with 100% nitro and often use USA electronics.They made 52 Teles, some very nice Strats, some even with Lace Sensor pickups.Mid–1997 the CIJ logo was the only one used on Fender guitars coming out of Japan (with exception the Squire series).I really don’t know, but the MIJ logo Fenders were for the USA market.