Hello Kye an Paul
Sorry for delay in replying.
After looking at all the evidence, I think it is more probable
than not that your Gardener was made by Clyde Industries.
I was originally distracted by those slotted rear wheels, thinking
there may have been a connection to Kelly Engineering:
https://www.outdoorking-forum.com.au/forum/ubbthreads.php?ubb=showflat&Number=59982I have just recently posted the discovery of a significant machine,
the Clyde rear-catcher mowers from about 1956. This is Paul's mower,
and it will be helpful to hear his thoughts here.
WE have bracket and wheel designs that appear very similar.
The bases are cast with similar features.
See what you think:-https://www.outdoorking-forum.com.au/forum/ubbthreads.php?ubb=showflat&Number=70076------------------------
Jack