Hey Jack,
Excellent summizing there mate and interesting you can trace some time line for sure.
I am thinking with such a small pool of this older equipment left to draw from, the dots become easier, or larger?? � if we still used these machines for our daily chores and with limited access to slow moving information as it was back then, one probably wouldn't question whether the "new" IHC was a Ronnie or an import.
I have also thought that with shipping and importation the way it was back then, it was probably vastly easier to reach a market and establish your credentials by white labelling a few models and leaving the big costs to importing your core or proprietary products �
On New Record engines, I can't seem to find it but there was one for sale recently with the New Record branding shown as relief work on the hopper and on the makers plate.
I have the feeling it was very Lister'ish, upright in stance, and dark green (for a change lol)