http://www.youtube.com/watch?v=yHquQbWlzSM
Lanham favored offset Fenders for a long time!
On that video, his Jazzmaster was apparently a pre-production model provided by Fender for him: it was red with a black anodized 9-hole guard and different knobs. You can clearly see on this video that the guard already had large wear spots when this was filmed.
This wear on the anodized guard could very well be the reason why the guitar was later fitted with a tortoise guard and Strat-style knobs:

But then, he also played Jaguars and this pic I found to be particularly interesting in that this one has only "Fender" on the headstock! Another pre-production model, maybe?

And finally, with another Jaguar here (what colour is that??):
