Hi Marcus,
Yes, I was not aware the MK1s came to these shores.
I'm not the expert on Atco.
Sir Chook is the best Australian authority on these wonderful machines.
The typical Atco 'dogtag' suggests this is of '40s vintage.
I look forward to some pics on the Ransomes.
If possible, the stamped info. on the flywheel (behind the cover plate)
may give a close (approximate) production date.
Cheers Marcus, and thanks for sharing on the
ODK forums.
Jack