Looks like you already have your answer,It appears the Falcon Company is more industrial/agricultural farm equipment.I would say that they wanted to add a smaller unit to their product range to cover all bases.It almost certainly appears to be a Rover as you said and just rebadged for their own company line up.Just like so many other companys did.HG Palmer,Pace,And all The department store Brands to name a few,All used Major Manufacturers Rebadged Designs:)
Just revert it back to a rover,Id say its only the decals and maybee some very minor differences in appointments,but id doubt it.
http://www.falconequipment.co.za/mowers/falcon
