G'day Geoff,
I'll concur that these New Record engines are just a rebadge, of the Rosebery/Buzacott Model 2C. As is every vertical New Record that I can find online pics of! The cast-in model number is the same one Rosebery/Buzacott used, too.
It's notable that the New Record 'makers' plates are screw-ons, as were the Rosebery and Buzacott plates. An engine made with rebadging in mind, I'd say.
Here's a thread with pics of another New Record engine example:
http://www.streetfighters.com.au/fo...-motor-New-Record-2C-103-What-s-it-worth He's mistaken about the 'original' fuel tank though - it's off a Victa Utility mower!
There are a couple of very distinctive design features found on the Rosebery/Buzacott verticals. These are the centrifugal governor housing/breather, and the 'fuel vaporiser', with its side bowl/needle valve for petrol starting, when running on power kerosene.
These features appear on these New Record engines.
This page at the MAAS website has a very useful image set of the Buzacott Instruction Manual for this engine series;
https://collection.maas.museum/object/146326Also, this thread over at the Smokstak forums has images of an early [horizontal engine] New Record drag saw sales brochure:
https://www.smokstak.com/forum/showthread.php?t=178068&page=2They would supply the saws with or without engine.