Hello Geoff and Gizmo
What a fantastic beast!

I looked on
TROVE and then did a filtered search for
illustrated records.
It may be that these North American machines were imported
and fitted with engines of choice. I don't know.
https://trove.nla.gov.au/newspaper/result?q=New+Record+Drag+Saw&l-illustrated=trueGeoff, many thanks for the great images.
Cheers
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Jackp.s. Here's a good video of the general idea ...