Hello Grumpy

That's a $64,000 question. My best response is this:

There are two Australian lawnmowers of interest in having 'that Atco Look'.
These are the Mobilco and the Austral-Villiers Everyman.

The Powerhouse museum says that the Austral Villiers was made "to British design patent"
http://www.powerhousemuseum.com/collection/database/?irn=87203

I suspect that the Mobilco has a similar story ... But I think I can say
that even though both Australian machines are 'in the style of Atco', no parts
are interchangeable. They just look similar.

However, I have not been able to confirm this.

Here is the Everyman:-
[Linked Image]