Yes, Charles Ellsworth Russell (clarinet) and William Basie (piano) in the CBS television studio, December 1957, probably for the rehearsal for THE SOUND OF JAZZ.
There is only one other photograph I’ve ever seen of the two great individualists together — at the Leadbelly Memorial Concert. Here’s the reverse of the 1957 candid portrait:
It makes me wonder how many other previously unseen photographs (this one isn’t by Milt Hinton but by a CBS staff phogorapher) exist.
But I don’t have to wonder about the composition Pee Wee Russell and Count Basie are embarking on — no, I’d bet my 2012 salary that it’s a Bb blues. And I wish I’d been able to hear it . . .