We are still learning about very early 68 features . It is possible it was used or intended to be used on some of the first 68 GT500's before changing directions . I am not aware of any picture documentation to support it's use however. That is why I said maybe
. I didn't want to say never until I know for sure. I have seen NOS silver ones liked discussed before . Mostly sold out of a estate some years ago that had a lot of NOS emblems from the MFG. Pookie bought a lot . I did too but stayed away from buying the silver GT500 ones. He has been slowly getting rid of them over the years. I have had discussions
with owners that were very vocal that they were used in 67. They quieted down when I asked the question of what they thought the odds were that Shelby on purpose would place a silver background gas cap emblem and a gold background trunklid emblem on the same car only a couple feet apart above it.
Shelby did some out of the ordinary things but not too many could be categorized as stupid.