Tim (and Patrick), I hope you do not mind my replying?
Burgundy Maroon was used only in 1953. Cape Maroon was used from 1947 through 1953.
Tim, if it is not too cold, and you are near your truck, it would be interesting to see a closer photo of a buffed-up section of your firewall. (Place a sheet of dull gray or light brown paper next to the firewall - this would allow a better color contrast/comparison and a better exposure setting for the camera).
