Australia Official Perfins

This is just a quick plea for information. Can anyone supply an on-line link for a listing of known varieties of Official Perfins from Australia? I recently came across a small quantity which include the large OS, large and small OS NSW, and G on the roo issues and KGV issues. My problem is that Scott does not list Perfins at all and my small town library has no access to either Stanley Gibbons or Michell catalogues. I tried Google but, other than endless retail offers, no success.

I know that the OS NSW ones extend into modern issues and there were plenty in this lot, but I tend to treat them like the PS (province of Saskatchewan) Canadian Perfins and have restricted my interest to the earlier usages.

Try here:

Thank you Partime. This was a very useful link to me and brought up a number of state and local usages that I was completely ignorant of. Now it will be a multiple day project involving a good deal of looking until I am cross-eyed, separating the various perfins. Looks like it will be particularly challenging with the OS perfins.

Will this do?
https://www.perfins.com.au/

Also a thank you to Rob04 for the website contact.

I thought that there might be some interest so I scanned the envelope of Official Perfins which I was referring to in the initial post. After I get them cleaned up and have the hinges, paper remnants, etc. removed, I can take a close look to see what types of perfins I have and which issues they are on. Going to take more than one quick session at my desk for sure.

I have a good selection of perfins myself.