Thanks guys,
Very helpful info. Bill I have checked out the internet site and ebay you listed and they are exactly what I was looking for. Thanks.
Trevor and Brian I have taken onboard what you both said. My bike was sent to Sydney in 1951 so I assume it was first registered in NSW. I plan to fit a replica "Pommie Tax Disc", just to make it look original, but may have to cover it when its on the road. Mind you, the bike is in a million bits at the moment so it will be some time yet.
Thanks again all.
Very helpful forum for a novice that I am.
Russ