[quote name='mrbassman_de' timestamp='1365519562' post='2040618']
[size=4][font=arial,helvetica,sans-serif]For sure. Even if this is not a slab board, but one of the very first curved board Jazzies :-) [/font][/size]
[/quote]
1st record I have of both a slab board and a curved board is the month of JUNE '62 so certainly by August they were curved only.
This is a very nice example indeed!
My reckoning on the stack knob -v- 3 knob system is that Leo Fender didn't simply change things just for the hell of it but to improve. Therefore I've never got too excited about acquiring a stack knob (Jaco's was one and he changed it).