I recently purchased a Fender Jazz bass which I was told was a 1966 body and the neckplate verified this. However, I was noticing some characteristics about this bass which were uncommon to other 66 jazz bodies. For one thing, the holes for the pickguard didn't match up to the other 66's and there were no holes on the bass where I have seen the "finger rest" on other 66 jazz basses. Another oddity about this bass is that the bridge pickup fits perfectly in the slot which was cut for it, however there is extra space (like a square in the middle) for the neck pickup. I thought that I heard they did those on 70's jazz basses. Finally, when searching for a pickguard that would fit this bass i noticed the only one's that matched were the post 72 jazz bass styles but my bass didn't have any holes where a thumbrest would go on those pickguards. That is until I held it under a certain light and noticed that there appeared to be holes where a thumbrest would go and they were filled with putty and painted over. So...can anybody else help me solve this mystery? Is this a jazz bass from after 1972...or do I just have circumstantial evidence? Please help as this transaction is not complete and I need to resolve this! Thanks a lot.