Hello Shane and sb30inch

This machine is post-war and as sb30inch infers, it probably dates
from about 1950 to 1954 (best guess).

We have a record of a partially restored one here:
https://www.outdoorking-forum.com.au/forum/ubbthreads.php/topics/67733/

I believe the better designation for the engine is an Atco-Villiers,
given that the engine cooling fins seem unique to the Atco range.
[Atco & Villiers had a 'special' relationship from the earliest days]

Atco did use those 'pepper-pot' exhausts, but I am unsure whether it
is original to your particular mower.

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