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Dating an old Fender Jazz Bass

Hello.
I just find this old Jazz Bass, Serial S731635, that seems to be an old 77.
I take some pictures of stamps in the neck and body, but don't find any explaination about the system use on it (4 numbers on each)

19506526055_2c22380d27_k.jpg
Sans titre

19318622358_b25da9b235_z.jpg


18884117934_56e9358e77_k.jpg
Sans titre

Some have maybe decrepit this system ?

Best regards
 
Thanks. But in fact, i try to use the "stamps" on body and neck to dating more precisely.
and the signification of the 1273 and 1575 if it's possible.

The 1273 and 1575 are not date codes, just batch #s used in the manufacturing process. Fender stopped putting body dates on altogether in the early '60s and didn't start doing it again till the early '80. If there is a date code on the neck (and many in the '70s do not have one), it would be on the end of the heel. If not, the "S7" serial # will have to suffice for the neck date which is pretty safe to say it's a '77 neck because they went to "S8" sometime in '78 (although Fender did use S7, S8 and S9 ser #'d neck up thru 1982). The way you date the rest of the bass is by the date codes on the pots, and the codes that are typically stamped on the bottom of the pickups.
 
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My bet would be late 77. I have a 77 and 78 and the neck pocket is very different on each. The 77 follows the radius of the neck butt (as it should), where as the 78 has the corners routed poorly leaving corner gaps . This is lazy in my opinion and probably the result of re-working the old jigs and not caring what was underneath the pickguard.

What does the routing on the neck PUP look like? Mostly likely rounded on the ends and not following the rectangular shape of the PUP itself. Both of these sound great but I did do some work to remedy the gaps.

Before pic - I glued in some veneers for a more solid contact.
IMG_2100.JPG

After pic - although it's not obvious here, it's a very smooth transition.
IMG_2217.JPG
 

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My bet would be late 77. I have a 77 and 78 and the neck pocket is very different on each. The 77 follows the radius of the neck butt (as it should), where as the 78 has the corners routed poorly leaving corner gaps . This is lazy in my opinion and probably the result of re-working the old jigs and not caring what was underneath the pickguard.

What does the routing on the neck PUP look like? Mostly likely rounded on the ends and not following the rectangular shape of the PUP itself. Both of these sound great but I did do some work to remedy the gaps.

Before pic - I glued in some veneers for a more solid contact.
View attachment 648264

After pic - although it's not obvious here, it's a very smooth transition.
View attachment 648265

Exactly, a '77 neck pocket should fit like a glow.

here is my '78 J's neck pocket:
IMG_20150708_190522.jpg
 
Those 70's basses with Antigua finish would chip so easily. I remember selling Fenders in the 70's and we hated getting these things in because the finishes would chip if you looked at them wrong. So the repaint is definitely a possibility IMHO.

Are you talking about the color layer? Mine was pretty worn when I got it, but there are definite white and black spots peeking through.

downsized_1219081157a_zpsytf6adyg.jpg