What a find!!
I got my EB3L '74 from its first owner for £150, but that was in 1981......
This site has all the info you will ever need:
http://www.flyguitars.com/gibson/bass/
You can date the bass from the serial nos on the pots as well as the stamp on the headstock.

I got my EB3L '74 from its first owner for £150, but that was in 1981......
This site has all the info you will ever need:
http://www.flyguitars.com/gibson/bass/
You can date the bass from the serial nos on the pots as well as the stamp on the headstock.
