Not a silly question Tony,
It's called "label casting" where you print an image onto a specific size piece of paper, this is then wrapped around the tube, sealed and resin cast in a pressure pot. I don't have the patience or skill to do this, apparently it's very difficult to line the seams, what I do is pay some extremely talented people to produce the blanks I want, this was a Scott Walker blank....aka Sawes on this forum or Mr resin on FB