Hi
SimRice,Firstly my

on a great score for the price....well done mate!
What you have there is an early example of the 20" SB model 45, manufactured at the Thebarton factory in South Australia and would have originally been fitted with a Kirby Tecumseh HK30 3HP. 4 stroke engine.
It would also have the 3 section rear roller and an 8 blade cylinder reel.
Here's a pic...
![[Linked Image]](https://www.outdoorking-forum.com.au/forum/uploads/usergals/2014/04/full-1147-16249-scan0054_medium.jpg)
I would like you to post some pics please of the inside of the chain-case so we can assess the condition of the chains and sprockets, also a close-up of the cylinder reel and bottom blade.

Once again, SimRice, a good score!