This is almost certainly custom-drawn lettering just like its successor, Jim Parkinson's RS logo

Looks to be one of many custom creations for Rolling Stone by Dennis Ortiz-Lopez.

What does that mean "digitally rendered?" I wonder why Parkinson's RS Logo on Ortiz-Lopez's site? The curly logotype above is obviously way before digital and bears distinct differences to the "digital" rendering. It would be interesting to know who originally drew it. Can you shed any more info on this, Mike?

I'm confused too now, James. I just e-mailed both of these type artists inviting comment.

The logo in the sample above is the original one by artist Rick Griffin. More about it here including comments by Jim Parkinson and samples of most of the logos RS has used over the years and info about them.

Aha. Thanks Mark. So it appears that Ortiz-Lopez' role was simply one of digitizing the existing logos, eh?

I wonder if that's the case with the several major league baseball team logos that he shows as well ...

Thank you very much for taking the time (x2 apparently) to clarify, Dennis.

Yes, thanks for the response, Dennis. It's much appreciated.