B&W, B/W, black & white, black and white, Punch Magazine, cartoons, 1930s, Thirties, 1931, area codes, science and technology, science, technology, telecommunications, telephones, Hammersmith, Riverside, dialling codes, rivers, streams, children, girls, London, England, United Kingdom, UK, city, capitals, cities, Great Britain, English, Punch, Dialling Tones, illustrated poems, Jan Struther, fantasies, fantasy