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[Linked Image from milehighcomics.com]


The photo-cover from SUPERMAN 289 is one I have special affection for. It's a visually striking and dynamic cover, and displays a number of DC staffers on the cover, posing for it. Jack Adler took the photo, as he did for many of these 1970's era photo-covers.
From left to right, pictured are Bob Rozakis, Cary Bates, Jack C. Harris, Carl Gafford (only an arm and leg visible from behind Harris), and E. Nelson Bridwell (directly behind horse's head). The Supermaan illustrated portion by Curt Swan/Bob Oskner.
Verified at: https://www.comics.org/issue/28749/

While it lasts, from an online auction, here's the most oversize image of the cover I could find, that lets you best see their faces :
https://storage.googleapis.com/hipcomic/p/56bad20b7fc2c7f71bfba96d9afe1edd.jpg

Here is the next largest of the cover, from ReadAllComics, of the SUPERMAN 289 cover in roughly an 11" X 17" size.
https://readallcomics.com/superman-v1-289/


And from AMAZING WORLD OF DC COMICS fanzine issue 7 (a Supermaan issue), dated July 1975, here's Carl Gafford's recollecion of how that cover came into being:
https://blogger.googleusercontent.c...zakis+bridwell+cary+bates+bronze+age.jpg
https://readallcomics.com/amazing-world-of-dc-comics-07/