Tomcoe, i'd venture to say that the yellowish color on the decal pictured, was originally off white. I'd bet that it yellowed over the years. That green, & red, has probably faded some also. I still had the remnants, of the decals, on two, of my parts trucks (both 48's) & when a very bright light, is shined on them, that yellowish color, on my decals, looks a dirty white. I also talked to a former GM employee, that has worked with these old Stovebolts, for many years, & he thinks, that it's supposed to be a off-white color also.