The red telephone box was the result of a competition in 1924 to design a new grander kiosk. The competition attracted designs from a number of noted architects. The Fine Arts Commission judged the competition and selected the design submitted by Sir Giles Gilbert Scott as the winner. The Post Office made a request that the material used for the design be changed from mild steel to cast iron, and that a slight modification be made to the door; after these changes, the design was designated K2. From 1927 K2 was mainly deployed in and around London. In 1935 K6 was designed to commemorate the silver jubilee of King George V. K6 was the first standard telephone kiosk to be used throughout the country. Many thousands of K6 boxes were deployed in virtually every town and city and it became a British icon. Source: Wikipedia Free Encyclopedia