This picture is the first installment in The Dalek Game, and one of two drawn from memory before I checked (and proceeded largely to ignore) the details of Dalek anatomy.
It is, of course, from James Goldman’s play The Lion in Winter. I first saw this in the Glenn Close/Patrick Stewart remake, but am including plays as books for the purposes of the Game. “Of course he has a knife. We all have knives. It is 1183 and we are barbarians!”.