M37CDN Paint Colour?
 

I am putting new tires on one of my M37CDNs and had a bunch of wheels sandblasted and epoxy primed. Before I get the new tires mounted, I want to paint the entire rim with a reasonably correct Semi gloss paint. This seems to be the truck of many colours, and I am having difficulty locating a sample to have the paint guy reproduce. I am particularly interested in the colour used in the mid sixties and want to eventually get the entire truck done. Can anyone of you direct me to the correct paint code that I can have made up locally?

Thanks, Jess