The Hercus 9″ is a Southbend 9″ clone manufactured in Australia.
The “A” model has a quick change gearbox and power cross feed. The “R” signifies roller bearings in the headstock.
I’m not sure of the history of mine except for the previous owner who I worked with and was a machinist. This was his workshop lathe.
It came with some extra change gears and three and four jaw chucks. Since I installed it in my workshop I have added an AXA-style quick change tool post, fixed steady, genuine Hercus thread chasing dial, and a Waldown tool post grinder.
These seem to be a popular little lathe here in Australia if you can get one without too much bed wear and if you don’t want a new or used Chinese lathe.
After having done some tests as described in the Hercus “Textbook of Turning“, it doesn’t cut parallel so needs leveling of the stand and bed (I had to buy a second hand machinist level off eBay to figure out how bad it was).
This will be a few hours work as I will have to buy or make some leveling feet for the stand to get it close before I start on leveling the bed. I’ll get some photos of the job when I do it.