Hello Cliff

Yes, there was most definitely a Rancher 'One'.
I believe that it must have been introduced in the early 1970s, to be
replaced by the Rancher 2 in the mid 1970s. The Rancher 2, itself, would
be replaced by the new 'orange' Ranchers in about late 1981.

I had forgotten about the optional front slasher!
We would appreciate any photos you have of this seemingly rare Rover!
This is one that should be documented as early Australian ride-ons are
only starting to become collectible.

WE have a help post for uploading photos HERE.

Cheers and thanks.
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JACK