[chris vickery]

The colour arguement goes round and round and I suspect it always will.
Doesn't matter if it is the Jeep police or any other group in the MV hobby.
I think one of the main issues is in making a determination as to when and where colours were changed. Then there is the issue of one manufacturer to another.
The problem with using old paint chips to colour match is the fact that even the colour on NOS parts has deteriorated with time.
I would suspect that the truest way to achieve original colours would be to obtain original chemical formulations. Even the bases would require original composition, not to mention the exact mixes.
Somewhere I have an original formula for Lightstone which needed to be calculated into modern measures.
Back in the 40's CIL used a measurement called "dial" which does not translate exactly into today's measurements.