I always liked this one, strange one though. Great details, like the cat/lion head from the drumriser (I guess?). You can also see the back of the Japanese tour book that's lying on the chair, so this must be during the Japanese tour in 1978.

I assume it is from the Japanese tour, also, since this picture was featured in an article about the same tour. It makes perfect sense. I always imagined it was shot backstage during the show (maybe while Peter was soloing) and Gene decided to get a quick bit of relaxation in. A very cool candid picture.