No, Eugene. The switch on the originals had all 5 positions available, you will hear the 'two pickup' sound on many of the 1960's Shadows tracks. I have two 1964 originals and a '66 Baldwin Marvin that all have their original selectors to support my statement.
Hi Bill
I believe you when you say it - but that's interesting info. What are the serial numbers on your 64 Marvins?
For other reasons I have previously done some research on the subject and the impression I got was that a 3 way switch was the norm. At least the original Marvins I could locate (with the help of a reputed collector) all had 3 way switches. I know there was a change at some point in the production between two types of switches, know as the rotary- (form not function) and the box-type, but both 3 ways I believe.
Evidently there's 5 ways versions as well, like yours - I just haven't met them (the fact that some Shads track have the "in between" sound doesn't necessarily take a 5 pos switch).
There are rumours that other - and quite different switches (and possible pickups wirings) - excists on some Marvins, so one never knows.
Erik