I agree Jack, I think I know a place where I can get a Whirlwind walk behind slasher if you need pictures Jack, I have a bit to pick up from there. Also all my Whirlwind printing blocks are either for the walk behind slasher or the tractor slasher. I am planning to take one of each to the Nambour swap meet for any collectors there.
I would like to help in anyway with getting info for the Whirlwind, its a brand I have wanted to know more about for years!
Cheers Jack!