'66 precision body: marks?

[4snaar]

I have a precision body which is from 1966. I have the neckplate with serial number and the body has al the details from a body from 1966. The body has an old refin.

But I don't know yet the actual meanings of the different marks. Does anybody know wat the marks in the pick-up cavity and the neckpocket means? I see a S at both places (or perhaps 5).

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I have seen the S mark in the pick-up cavity at another 1966 precision. That precision has the mark R in the neckpocket. That precision also has mark VM in the pick-up cavity.
And does anybody know what the little circle in the corner from the pick-up cavity is?

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I also have a question about the serial number. The serial number is 134xxx, which is supposed to be a 1966 serial number. Does anybody know if this is an early 1966 number? Or is that difficult to tell? Till now all 1966 basses that I have seen had a higher serial number.

Thanks in advance. I would be nice to know the meanings of these details.

 

[Tonegasm]

Sunburst?

Plug your serial number in here:

http://www.guitardaterproject.org/fender.aspx

 

[4snaar]

Yes, it is an old nitro sunburst refin and in the past an additional bridge pickup has been placed in the body.

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Only the body and neckplate are 1966, the bridge is from a 1962 bass. The rest is new. The body is now at a luthier were it will get a normal 20 frets P rosewood replacement neck with an old style finish.

The serialnumber matches 1966 according to my book. The database you mention says 1966-1967. But the number is so low for a 1966 (I think). So I was wondering if i can say if it is an early 1966 number.