MWaldorf wrote:Wow, I hadn't noticed the screw placement before. I wonder why it was changed....//...Here's something else I wonder. How does the two pickup Mosrite bass Bob Bogle is holding the picture below fit into the timeline?...//...Yet for the summer tour, Bob is playing a single pickup model again...//...So, a two pickup model, then back to a single pickup model? I wonder why? Has Bob ever talked about this?
Screw placement? ...think of that 'Mosrite slant'

. Naw, the changed screw position is now halfway between the other two on the same side, making for a more secure attachment I think.
The photos are very interesting. Another similar picture taken of the group with the Geisha girl during the same photo shoot adorns the “Ventures In Japan” album, which was released in April 1965. The recording itself was made in January of that same year and the b/w photo shows the band playing the same instruments, so the bass therefore -as well as the guitars- cannot be dated later than Jan. ’65. From a realistic point of view however they’re all probably made some time during the preceding year, 1964.
When we zoom in on the bass Bob Bogle is holding we not only see the two pick-ups on it but also a third (!) control knob -undoubtedly to serve as tone control for the newly added bridge pick-up. Notice too, the absence still of a tone switch near the treble horn.
This bass makes me think it is a prototype or transitional model, having taken quite some time in getting ready for production (1966). Another reason accounting for this delay could be the fact that the demand for bass was (is) much less than for ordinary guitar which BTW was huge at the time.
To my mind this could be enough reason in itself for Semie to spend the bulk of his time, energy, staff and resources on the 6 (and 12) stringed instruments!
We do know of course that the tone switch ended up being in the definitive configuration rather than a third tone control knob.
“Yet for the summer tour, Bob is playing a single pickup model again” you say, Mel.
The Ventures had a habit of presenting their guitars to certain Japanese folks when their touring season had ended so when the group returned home they wouldn't have the bother of taking their equipment back with them. It could also be there was no 2-PUP white bass available at the time for the band's “all white” appearance.
Sometimes it happened that their entire gear got stolen so maybe they might’ve had to loan their previously owned older equipment back again for the Summer tour. Who knows?
These are just some thoughts and possibilities that come to mind …but having said that, with Mosrite of course, you can never be absolutely sure…
