Looking for an unknown triple white 70 Chevelle LS6 convertible

[442w30]

I believe it appeared in Muscle Cars magazine in the late 1980s, but could be wrong. For sure I remember a triple white car. I remember a guy who was like a manager for some Country artists, and he had a large Chevy collection, but I can't say for sure he was the owner at the time I saw it in print--could be conflating two articles.