I'm not sure - I've never seen the picture any larger than it is right now. Probably newspaper clippings or somesuch. I should probably just cut that part off. Actually, I probably shouldn't even use it, being it's someone else. I'll have to cogitate on this.
Here's a slightly larger version, in which you can see he's standing next to the words "JACK ABBIT." One might reasonably assume that at some point those words read "JACK RABBIT," although who knows.
I felt the need to research this because I thought that was Ray Charles. Because, you know, black man with dark glasses. And I'm a
fan of Al Green, too. I'll just be over here, wallowing in my unintentional ignorance.