Hi Paul
Olympic Tyres sure had a manufacturing facility in Brisbane.
My eldest brother worked there as a young man.

Given your new information about the wheels, I am inclined to
think that Boundy made this particular lawnmower.

There is other evidence given to me in the gallery below:-

Cheers
---------------------
Jack

Attachments
00 Notes - Steve Coleman.jpg (94.85 KB, 67 downloads)
1959_08_shoes.jpg (49.19 KB, 68 downloads)
repco_1960_05.jpg (241.11 KB, 66 downloads)
vm_pathfinderc.jpg (39.06 KB, 63 downloads)