1963 or 1964.
L series, 1965.
Paul Tutmarc did not invent the electric bass. Leo Fender did in 1951. It was the Precision bass.
1968 or 1969
As to my sources: Your guitar was made at the Fullerton Plant (Fender - Pre CBS Era), USA in the Year(s): 1963
The original bass guitar was developed by Paul Tutmarc in the 1930s as a replacement for the double bass, but he received little success for the invention. In the 1950s Leo Fender (who, obviously, is the man who started Fender) took the idea and introduced the first mass-produced bass guitar on the market, the Precision bass. This was hugely popular and since then bass guitars have become the norm in all bands, and variations upon the Precision are still made and extremely popular.
1976
1977 according to the Fender website
According to the Fender website, your instrument dates from 1973.
Whatever someone is willing to pay for it!
This depends. The Fender Jazz bass has been around for quite some time, so the year could be from the 1960's all the way to now. The best way to find out the year of your Fender Jazz bass is to look at the headstock. On the headstock, you will see a serial number... do a web search for that serial number to find the exact year of the bass.
The fender Jazz Bass is a quality product. as long as there is no diliberate miss use, the bass and an eight year old should hold up just fine.