I've been checking my gallery of Murena pics, and now I see that there actually IS a difference in what I orginally thought was only one "gold" color.

Some like on your booklet is a dark rich almost brownish which like you say is Cannelle. Mine is more of a pale almost pinkish, but can look very "gold"like in the right light too.
If you would manage to scan the booklet Roy, I and I'm sure several others here would be very happy to see the "real" colors as they once were from Matra them self.
I find it remarkable that they chose colors that close on such a small batch of car.