Perhaps some non-standard color combinations were built and went through the system w/ a Copo but depending on year etc wasn't always req'd?
Here's a thread on the same exact subject, click below and note John Z's comments.
http://forums.corvetteforum.com/c1-and-c...coupe-copo.html
Cool if a Copo car but tags/paperwork etc need to be examined to know for sure or not, as always the proof is in the pudding!
[img]<<GRAEMLIN_URL>>/beers.gif[/img]
~ Pete