I will take a pic of one I have here at the house Roger. I dropped it in an old cattle trough of water to soak the dirt and was then going to hose it clean.This was to chainsaw it in half,I split another with an axe for a mate that wanted some,I have never asked how he did with it,must do.

So I pulled it out of the trough and did nothing,it is still sitting on the trough haha. There are thirty in a heap down in the paddock that I didnt burn all roughly the same size ..I thought someone might want a few.

Note all the lumps and bumps on it,they are all the same and this is the section where the trunk swells as it hits the earth surface.
Size is around 400mm at the widest point.