[Arran]

Mike; Terry;
  I had a look at one of my Hippos last night, the cord that moves the pointer has a loop on one end that fits over the hub of the pulley on top of the tuning condenser, and then feeds out of one of the slots in the pulley, and then over to the clip on the back of the dial pointer. I don't know what was on the end of the cord where it clipped onto the back of the pointer as that end had apparently snapped off and disappeared, but it was probably a knot to keep the cord from slipping through. It's actually a fairly ingenious dial cord arrangement, they found a nice and simple way to move that pointer rather then going through some Rube Goldberg arrangement of pulleys and loops like some British or European radio would use.
Regards
Arran