Hello 1967Z28 and camarojoe,
Here's an NOS sticker that I got from a very generous guy in Cincinnati about 10 years ago. My gut feeling has been that this fender sticker is 1970's - early 1980's vintage. But if that sticker you posted shown on that '67 Z with survivor paint is original to dealership sale, then they were used earlier. Anybody have any thoughts to how early these stickers were used? My sticker measures 1-1/4" X 7" inches. Surprisingly small for a dealership decal in my opinion.
Mike
P.S. Just noticed while posting this.....The '67 Camaro has a white letter version sticker and my NOS sticker is a black letter version. Obviously for light colored paint.