Most of my SAAF stuff can be found at www.ww2wings.com
There has just been added, some interesting SAAF insignia at
http://www.ww2wings.com/wings/southafrica/southafricainsignia.shtml
The service stripes shown at the bottom of the page are not unique to the SAAF (I have identical on RAAF tunics), but the ASR badge is very interesting! Certainly genuine I'd say, but official, or not?