Thanks for the reply. I forgot I did my research in England for my 65 Spitfire4. I went through tech bulletins from the western zone USA. I wish I had earlier than 63 but it was called Triumph Racing Green in the USA bulletin T-63-31 dated Apr 12 1963 gives the formulas for it, mixed by Rinshed-Mason and Dupont. Bulletin T-67-7 was a re-issue of T-64-11 paint color code green is the 5, 1st shade was Cactus(15), 2nd shade Conifer Green*(25)(in most books and England) 3rd shade was Olive(35) bottom of page * note is "*Known in the U.S.A. as Triumph Racing Green." It is also called TRG(25) in T-66-15 that bulletin is about the Imperial Chemical Industries of London, who manufactures much of the production paints for Triumph, is making their new Hi-Build lacquers available in the USA through their distributors. The bottom line is "The information is provided as a service to anyone requiring the original Triumph paint and does not affect our American Domestic formulas."