There really weren't many and to the extent there were, they were considered "country." /yuck! Neil Young is the only one I can remember playing one and of course that wasn't a bass. By the time I'm thinking about Gretsch, Vox, Hagstrom, Hofner, etc. had all sort of faded into the past by and large. My first bass was a Framus acoustic/electric and oh how I wish I had it now. But back then, it was an embarrassment. My band sort of had an "intervention" and insisted I get a proper bass. Enter the Gibson Ripper and they were still sort of pissed I didn't get a Fender.
That's what a lot of guys from that generation have told me.... sometime around 1970, interest in anything other than Gibson and Fender just dropped like a rock. Then there was a great desert, until Hamer, the non-lawsuit Ibanezes, etc. started popping up.
