Harry Beck version of the London Underground diagram. In March 2013 a blue plaque was unveiled on the house where Beck was born, in Wesley Road in Leyton, to mark the 80th anniversary of the Tube map. GB Railfreight named locomotive 66721 after Beck in January 2007. Beck's idea has been emulated by subway, bus and transit companies around the world and many urban rail and metro maps use his principles. He was featured on a BBC2 series called "Map Man" in 2004. Harry Beck Henry Charles Beck (4 June 1902 – 18 September 1974), known as Harry Beck, was an English
Commemorative plaque plaque scheme run by English Heritage in London, although these were originally erected in a variety of shapes and colors. The National Trust (which is a non-profit charity organization unlike English Heritage and English Heritage properties) has its own similar markers as well. However, not all historical markers in the United Kingdom are blue, and many are not ceramic. There are commemorative plaque schemes in Bath, Edinburgh, Brighton, Liverpool, Loughton, and elsewhere—some of which differ from the familiar blue plaque. A scheme in Manchester uses color-coded plaques to commemorate figures, with each of the colors corresponding to the person's occupation.