Well, with my new found powers of manipulating time (!!) (you had to be there) have assembled a 1973 version of what should be Nortons little color chart that came additional to the brochure.
Data is from the brochure and the list of colors in Roy Bacons Norton Twins Resto book - great resource.
Note that 750 and 850 models are both covered in this, since they were both on sale in 1973.
Couple of uncertainties of how this included HiRider models, and if the 750 Roadster came in fireflake bronze or not in 1973.
Bigger version when I've done some more looking into it.
Data is from the brochure and the list of colors in Roy Bacons Norton Twins Resto book - great resource.
Note that 750 and 850 models are both covered in this, since they were both on sale in 1973.
Couple of uncertainties of how this included HiRider models, and if the 750 Roadster came in fireflake bronze or not in 1973.
Bigger version when I've done some more looking into it.