Interesting to see an Australian made one. I really like military bicycles, but there is not a lot of info available.
Here's a thread I started a long time ago on my bicycle:
http://www.mapleleafup.net/forums/sh...ad.php?t=20143
You can look at
http://robvanmeel.nl/?q=search/node/bicycle for reprints of period manuals.
Googling for Malvern Star, finds you results like these:
https://oldbike.eu/ww2-malvern-star-military-model/
There's an Australian forum with some references too:
https://www.bicycles.net.au/forums/
HTH,
Hanno