Hello Mal,

I have nothing but the Green Books for part numbers.
Part number for the ramped holder? Probably lost to history.
The main thing is that we record Victa's first disc.

Shall we call the first disc the 9A?
So, at what point did this 'ramped disc' give way to the 9B? And why?
Here is an extract from a late 1950s maintenance guide. 9B.
[Nice way of removing the disc nut]

[Linked Image]

Cheers.
-----------------
JACK.