I'm sorry, there's no pattern, it was just made up as I went along. It's basically just a long rectangle with the first and last row sewn together to make the walls. Then I made two same size squares for the bottom and top, and sewed those on. That's the box. Then I made a slightly smaller rectangle and attached that on the roof. Finally, I made a short ribbon (a chain and sc back) to imitate the bit that in reality and the police box signs. This is all judging by the picture, because I can't remember really making this