Hello Bellarinelawns and GM Gadge

I have not seen this exact model.
My best guess is mid-1960s.

Yes, 143cc Villiers Torque Major De-Luxe:-
https://www.outdoorking-forum.com.au/forum/ubbthreads.php/topics/59887/VILLIERS_-_Torque-Major_140_En.html

The alloy, segmented handle brackets are typical Supa-Swift.
[Much better than the Victa-Pace plastic jobs]

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Jack