my Dad tells me that school photos used to be done on a camera that "scanned" left to right - the blokes on the end would often run around the back & appear at both ends of the photo.
Those cameras were called cirkut cameras and there are still people shooting them today. They had a geared base that scanned a scene at the same speed onto large format roll film. Film width ranges from 5 to 16 inches. There is an excellent book of cirkut camera images called America By the Yard










