This cover is from just last year. Although it's obviously done to look more like a 1970's style. It makes me think of not only album covers from that time, but also of science fiction and fantasy book covers from that decade. The artwork was done by Arik Roper who has done album covers, shirts and poster art for Sleep, High on fire and other artists. The giant hand concept also reminds me of Rainbow's Rising and the position of the hand reminds me a little of Judas Priest's British Steel.
Arik Roper's site is here http://www.arikroper.com/