Based on a design of call box introduced from the 1920s, in real life they contained a phone for use by the public in an emergency, and police officers could use them as miniature police stations, with facilities inside for compiling reports, taking lunch breaks and even temporarily holding suspects until assistance arrived! The fact that it also resembles a certain time-traveller's means of transportation is purely coincidental! Needless to say, we are very confident that this kit will appeal to customers well beyond those of an O gauge inclination!