This is a very tricky one, Martin.
There are no photos of the back or of the neck heel joint, both of which are crucial, I can't see the pot codes, and obviously I can't feel the weight and balance to establish whether or not there's a 'sustain block' under the pickups.
From the photos on offer, it would work as a 66 model except that those control knobs are all wrong and that doesn't look like 60s German wiring.
Trouble is, there were so many subsequent revivals and reissues, all trying to recapture that 60s vibe, that it would also work as one of those. Reissues were made at different times in Germany, Spain and Japan, and for each of Hofner, Sorkin and Boosey & Hawkes.
It's odd that you found this in South Africa since it's not a UK & Commonwealth import. That's a German and Continental bass.